IP Library › Granted Patent US 4,494,258
Granted Patent Utility
US 4,494,258 · App. 06/415,084

Sofa bed mechanism

Inventors: Theodore J. Blevins, Paul R. Swiderski
Patented Case View Patent ↗
Granted: Jan 22, 1985 Filed: Sep 7, 1982
Inventors
Theodore J. Blevins
Paul R. Swiderski
Assignee (at issue)
Hoover Universal, 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 4,494,258
App. No.
06/415,084
Filed
1982-09-07
Granted
1985-01-22
Kind
A