IP Library Granted Patent US 4,329,281
Granted Patent Utility
US 4,329,281 · App. 06/106,347

Hapten compositions

Inventors: James Gordon Christenson, Benjamin Pecherer
Patented Case View Patent ↗
Granted: May 11, 1982 Filed: Dec 21, 1979
Inventors
James Gordon Christenson
Benjamin Pecherer
Assignee (at issue)
HOFFMANN-LA ROCHE INC.

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,329,281
App. No.
06/106,347
Filed
1979-12-21
Granted
1982-05-11
Kind
A