IP Library › Granted Patent US 4,382,634
Granted Patent Utility
US 4,382,634 · App. 06/275,084

Material fracturing apparatus

Inventors: Lawrence E. Fox, Harold L. Reinsma, Albert L. Woody
Patented Case View Patent ↗
Granted: May 10, 1983 Filed: Jan 26, 1981
Inventors
Lawrence E. Fox
Harold L. Reinsma
Albert L. Woody
Assignee (at issue)
Towmotor 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 4,382,634
App. No.
06/275,084
Filed
1981-01-26
Granted
1983-05-10
Kind
A