IP Library Granted Patent US 4,137,145
Granted Patent Utility
US 4,137,145 · App. 05/866,447

Separating web for electrolytic apparatuses

Inventor: Bruce S. Wallace
Patented Case View Patent ↗
Granted: Jan 30, 1979 Filed: Jan 3, 1978
Inventor
Bruce S. Wallace
Assignee (at issue)
Hooker Chemicals & Plastics 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 4,137,145
App. No.
05/866,447
Filed
1978-01-03
Granted
1979-01-30
Kind
A