IP Library › Granted Patent US 5,277,997
Granted Patent Utility
US 5,277,997 · App. 07/922,146

Absorber assembly for alkali solutions

Inventors: Bhaskara M. L. Rao, William Kobasz
Patented Case View Patent ↗
Granted: Jan 11, 1994 Filed: Jul 30, 1992
Inventors
Bhaskara M. L. Rao
William Kobasz
Assignee (at issue)
Alupower, 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 5,277,997
App. No.
07/922,146
Filed
1992-07-30
Granted
1994-01-11
Kind
A