IP Library › Granted Patent US 6,132,899
Granted Patent Utility
US 6,132,899 · App. 08/954,411

Battery Separator having different size ribs and method of making the same

Inventors: James Young, Francis E. Alexander, Daniel E. Weerts
Patented Case View Patent ↗
Granted: Oct 17, 2000 Filed: Oct 20, 1997
Inventors
James Young
Francis E. Alexander
Daniel E. Weerts
Assignee (at issue)
Amtek Research International LLC

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 6,132,899
App. No.
08/954,411
Filed
1997-10-20
Granted
2000-10-17
Kind
A