IP Library › Granted Patent US 4,139,980
Granted Patent Utility
US 4,139,980 · App. 05/786,183

Automatic film conveying and packing mechanism

Inventors: Louis A. Larson, Robert E. Diesch
Patented Case View Patent ↗
Granted: Feb 20, 1979 Filed: Apr 11, 1977
Inventors
Louis A. Larson
Robert E. Diesch
Assignee (at issue)
Pako Corporation

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 4,139,980
App. No.
05/786,183
Filed
1977-04-11
Granted
1979-02-20
Kind
A