EXHIBIT 4.2 REGISTRATION RIGHTS AGREEMENT REGISTRATION RIGHTS AGREEMENT (this "Agreement"), dated as of September 22, 2005, by and among Avitar Inc., a Delaware corporation with its headquarters located at 65 Dan Road, Canton, MA 02021 (the...Registration Rights Agreement • September 28th, 2005 • Avitar Inc /De/ • Orthopedic, prosthetic & surgical appliances & supplies • New York
EXHIBIT 4.1 SECURITIES PURCHASE AGREEMENT SECURITIES PURCHASE AGREEMENT (this "Agreement"), dated as of September 22, 2005, by and among Avitar Inc., a Delaware corporation, with headquarters located at 65 Dan Road, Canton, MA 02021 (the "Company"),...Securities Purchase Agreement • September 28th, 2005 • Avitar Inc /De/ • Orthopedic, prosthetic & surgical appliances & supplies • New York
EXHIBIT 4.4 THIS WARRANT AND THE SHARES ISSUABLE UPON THE EXERCISE OF THIS WARRANT HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED. EXCEPT AS OTHERWISE SET FORTH HEREIN OR IN A SECURITIES PURCHASE AGREEMENT DATED AS OF SEPTEMBER...Warrant Agreement • September 28th, 2005 • Avitar Inc /De/ • Orthopedic, prosthetic & surgical appliances & supplies • New York
