IP Library › Granted Patent US 4,781,982
Granted Patent Utility
US 4,781,982 · App. 07/126,244

Surface treating mineral particles to reduce halide adsorption

Inventors: Lawrence L. Musselman, Larry F. Wieserman
Patented Case View Patent ↗
Granted: Nov 1, 1988 Filed: Nov 27, 1987
Inventors
Lawrence L. Musselman
Larry F. Wieserman
Assignee (at issue)
Aluminum Company of America

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 4,781,982
App. No.
07/126,244
Filed
1987-11-27
Granted
1988-11-01
Kind
A