IP Library Granted Patent US 4,595,180
Granted Patent Utility
US 4,595,180 · App. 06/657,982

Spring assembly

Inventor: Robert C. Hagemeister
Patented Case View Patent ↗
Granted: Jun 17, 1986 Filed: Oct 5, 1984
Inventor
Robert C. Hagemeister
Assignee (at issue)
Webster Spring Co. 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 4,595,180
App. No.
06/657,982
Filed
1984-10-05
Granted
1986-06-17
Kind
A