Patent Assignment
Reel/Frame 004831/0982
Assignment of Assignors Interest.
Recorded: 1988-02-17
Pages: 1
Assignee
KEYSTONE DIAGNOSTICS, INC.
STATELESS
Covered Property
(1)
Drug Abuse Test Paper
Patent:
4,752,448 →
Application:
06/943,539 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.