IP Library › Granted Patent US 5,035,429
Granted Patent Utility
US 5,035,429 · App. 07/550,019

String straightener for tennis racket

Inventor: Allan Redrow
Patented Case View Patent ↗
Granted: Jul 30, 1991 Filed: Jul 9, 1990
Inventor
Allan Redrow

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 5,035,429
App. No.
07/550,019
Filed
1990-07-09
Granted
1991-07-30
Kind
A