IP Library › Granted Patent US 4,289,014
Granted Patent Utility
US 4,289,014 · App. 06/083,950

Double action domer assembly

Inventors: Edward G. Maeder, John M. Tovey
Patented Case View Patent ↗
Granted: Sep 15, 1981 Filed: Oct 11, 1979
Inventors
Edward G. Maeder
John M. Tovey
Assignee (at issue)
National Crane 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 4,289,014
App. No.
06/083,950
Filed
1979-10-11
Granted
1981-09-15
Kind
A