Common use of Period of Exercise Clause in Contracts

Period of Exercise. This Warrant is exercisable at any time or from time to time on or after June 13, 2007 (“Exercise Period Start Date”) and before 5:00 p.m., New York City time on December 15, 2011 (the "Exercise Period"); provided, however, that the Exercise Period may be extended pursuant to Section 4.13 of the Purchase Agreement.

Period of Exercise. This Warrant is exercisable at any time or from time to time on or after June 13, 2007 the date on which this Warrant is issued and delivered pursuant to the terms of the Purchase Agreement (“Exercise Period Start the "Issue Date”") and before 5:00 p.m., New York City time on December 15, 2011 the second (2nd) anniversary of the Issue Date (the "Exercise Period"); provided, however, that the Exercise Period may be extended pursuant to Section 4.13 of the Purchase Agreement.

Period of Exercise. This Warrant is exercisable at any time or from time to time on or after June 13, 2007 (“"Exercise Period Start Date”") and before 5:00 p.m., New York City time on December 15, 2011 (the "Exercise Period"); provided, however, that the Exercise Period may be extended pursuant to Section 4.13 of the Purchase Agreement."

Period of Exercise. This Warrant is exercisable at any time or from time to time on or after June 13, 2007 (“"Exercise Period Start Date”") and before 5:00 p.m., New York City time on December 15, 2011 2010 (the "Exercise Period"); provided, however, that the Exercise Period may be extended pursuant to Section 4.13 of the Purchase Agreement.

Period of Exercise. This Warrant is exercisable at any time or from time to time on or after the earlier of (i) June 13, 2007 and (ii) immediately prior to the closing of a Fundamental Transaction (as defined below) (“Exercise Period Start Date”) and before 5:00 p.m., New York City time on December 15, 2011 2010 (the "Exercise Period"); provided, however, that the Exercise Period may be extended pursuant to Section 4.13 of the Purchase Agreement.

Period of Exercise. This Warrant is exercisable at any time or from time to time on or after the earlier of (i) June 13, 2007 and (ii) immediately prior to the closing of a Fundamental Transaction (as defined below) (“Exercise Period Start Date”) ), and before 5:00 p.m., New York City time on December 15, 2011 2010 (the "Exercise Period"); provided, however, that the Exercise Period may be extended pursuant to Section 4.13 of the Purchase Agreement.

Period of Exercise. This Warrant is exercisable at any time or from time to time on or after June 13, 2007 the date hereof (“Exercise Period Start Date”) and before 5:00 9:00 p.m., New York City time on December 15October 31, 2011 2010 (the "“Exercise Period"”); provided, however, that the Exercise Period may be extended pursuant to Section 4.13 of the Purchase Agreement.

Period of Exercise. This Warrant is exercisable at any time or from time to time on or after June 13, 2007 the date on which this Warrant is issued and delivered pursuant to the terms of the Purchase Agreement (“Exercise Period Start the "Issue Date”") and before 5:00 p.m., New York City time on December 15February 28, 2011 2007 (the "Exercise Period"); provided, however, that the Exercise Period may be extended pursuant to Section 4.13 of the Purchase Agreement.that:

Period of Exercise. This Warrant is exercisable at any time or from time to time on or after June 13May 11, 2007 (“Exercise Period Start Date”) 2005 and before 5:00 the earlier of (i) 8:00 p.m., New York City time on December 15, 2011 the fourth (4th) anniversary of the date of issuance of this Warrant (the "Issue Date") and (ii) immediately prior to the closing of a Fundamental Transaction (as defined below) (the "Exercise Period"); provided, however, that the Exercise Period may be extended pursuant to Section 4.13 of the Purchase AgreementAgreement upon the occurrence of events set forth in such section.

Period of Exercise. This Warrant is exercisable at any time or from time to time on or after June 13May 11, 2007 2005 (“"Exercise Period Start Date”") and before 5:00 8:00 p.m., New York City time on December 15November 10, 2011 (the "Exercise Period"); provided, however, that the Exercise Period may be extended pursuant to Section 4.13 of the Purchase Agreement."

Period of Exercise. This Warrant is exercisable at any time or from time to time on or after June 13May 11, 2007 (“Exercise Period Start Date”) 2005 and before 5:00 8:00 p.m., New York City time on December 15, 2011 the fourth (4th) anniversary of the date of issuance of this Warrant (the "Issue Date") (the "Exercise Period"); provided, however, that the Exercise Period may will be extended pursuant to in accordance with Section 4.13 of the Purchase AgreementAgreement upon the occurrence of events set forth in such section.

Period of Exercise. This Warrant is exercisable at any time or from time to time on or after June 13, 2007 (“Exercise Period Start Date”) and before the earlier of (i) 5:00 p.m., New York City time on December 15, 2011 2010 and (ii) immediately prior to the closing of a Fundamental Transaction (as defined below) (the "Exercise Period"); provided, however, that the Exercise Period may be extended pursuant to Section 4.13 of the Purchase Agreement.

Period of Exercise. This Warrant is exercisable at any time or from time to time on or after June 13May 11, 2007 2005 (“Exercise Period Start Date”) and before 5:00 8:00 p.m., New York City time on December 15November 10, 2011 (the "Exercise Period"); provided, however, that the Exercise Period may be extended pursuant to Section 4.13 of the Purchase Agreement.

Period of Exercise. This Warrant is exercisable at any time or from time to time on or after June 13, 2007 the date on which this Warrant is issued and delivered pursuant to the terms of the Purchase Agreement (“Exercise Period Start the "Issue Date”") and before 5:00 8:00 p.m., New York City time on December 15, 2011 the second (2nd) anniversary of the Issue Date (the "Exercise Period"); provided, however, that the Exercise Period may will be extended pursuant to in accordance with Section 4.13 of the Purchase AgreementAgreement upon the occurrence of events set forth in such section.

Period of Exercise. This Warrant is exercisable at any time or from time to time on or after June 13, 2007 the date on which this Warrant is issued and delivered pursuant to the terms of the Purchase Agreement (“Exercise Period Start the "Issue Date”") and before 5:00 8:00 p.m., New York City time on December 15January 11, 2011 2005 (the "Exercise Period"); provided, however, that the Exercise Period may be extended pursuant to Section 4.13 of the Purchase Agreement.that: