IP Library Granted Patent US 4,492,666
Granted Patent Utility
US 4,492,666 · App. 06/364,474

Method for forming a protective pipe cap

Inventors: Wilfried Dreyfuss, Thomas E. Remp, Kurt Muller
Patented Case View Patent ↗
Granted: Jan 8, 1985 Filed: Mar 31, 1982
Inventors
Wilfried Dreyfuss
Thomas E. Remp
Kurt Muller

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 4,492,666
App. No.
06/364,474
Filed
1982-03-31
Granted
1985-01-08
Kind
A