Patent Assignment
Reel/Frame 004880/0238
Assignment of Assignors Interest.
Recorded: 1988-04-25
Pages: 2
Assignor
DERBY, NORWIN C.
Executed: 1988-04-12
Covered Property
(1)
Receptacle Having Improved Hopper
Patent:
4,811,419 →
Application:
07/185,981 →
Related Assignments
(1)
Other recorded transfers of the patent in this record — the chain of ownership.