IP Library Granted Patent US 4,747,834
Granted Patent Utility
US 4,747,834 · App. 07/101,431

Back-fill syringe

Inventor: Gordon E. Prindle
Patented Case View Patent ↗
Granted: May 31, 1988 Filed: Sep 28, 1987
Inventor
Gordon E. Prindle
Assignee (at issue)
Ideal Instruments, 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 4,747,834
App. No.
07/101,431
Filed
1987-09-28
Granted
1988-05-31
Kind
A