IP Library › Granted Patent US 4,696,290
Granted Patent Utility
US 4,696,290 · App. 06/846,018

Apparatus for straightening spinal columns

Inventor: Arthur D. Steffee
Patented Case View Patent ↗
Granted: Sep 29, 1987 Filed: Mar 31, 1986
Inventor
Arthur D. Steffee
Assignee (at issue)
AcroMed 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 4,696,290
App. No.
06/846,018
Filed
1986-03-31
Granted
1987-09-29
Kind
A