IP Library › Granted Patent US 4,749,035
Granted Patent Utility
US 4,749,035 · App. 07/044,414

Tubing packer

Inventor: Thomas G. Cassity
Patented Case View Patent ↗
Granted: Jun 7, 1988 Filed: Apr 30, 1987
Inventor
Thomas G. Cassity
Assignee (at issue)
Cameron Iron Works USA, 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 4,749,035
App. No.
07/044,414
Filed
1987-04-30
Granted
1988-06-07
Kind
A