BETAGEN CORPORATION recorded a security interest over 1 patent to SHAWMUT BANK, N.A., A NATIONAL BANKING ASSOCIATION, recorded 1991-02-08.
Evidence
Conveyance: SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). | Assignor: BETAGEN CORPORATION | Assignee: SHAWMUT BANK, N.A., A NATIONAL BANKING ASSOCIATION | Patents: 4670656