IP Library › Assignment 003953/0323
Patent Assignment
Reel/Frame 003953/0323

Assignment of Assignors Interest.

Recorded: 1981-09-08 Pages: 2
Assignor
SCHWARTZ, MARTIN A.
Executed: 1981-07-28
Assignee
Covered Property (1)
Process for the Preparation of an N-Substitued 3-O Alkyl-14 Hydroxynormorphinone Derivative
Patent: 4,472,253 →
Application: 06/293,461 →
Related Assignments (1)
Other recorded transfers of the patent in this record — the chain of ownership.
Assignment of Assignors Interest. Dec 24, 1990
From: MALLINCKRODT, INC., A DE CORP.
To: MALLINCKRODT SPECIALTY CHEMICALS COMPANY, A DE CORP.
Reel/Frame 005602/0024 →