IP Library Granted Patent US 6,131,679
Granted Patent Utility
US 6,131,679 · App. 09/422,413

Anti-tip assembly for power wheelchair

Inventors: Dale A. Pulver, Roland A. Mentessi
Patented Case View Patent ↗
Granted: Oct 17, 2000 Filed: Oct 21, 1999
Inventors
Dale A. Pulver
Roland A. Mentessi
Assignee (at issue)
INVACARE 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 6,131,679
App. No.
09/422,413
Filed
1999-10-21
Granted
2000-10-17
Kind
A