IP Library › Granted Patent US 4,816,941
Granted Patent Utility
US 4,816,941 · App. 07/097,787

Disk file digital servo control system with optimized sampling rate

Inventors: Stephen F. Edel, Ich Van Pham
Patented Case View Patent ↗
Granted: Mar 28, 1989 Filed: Sep 16, 1987
Inventors
Stephen F. Edel
Ich Van Pham
Assignee (at issue)
International Business Machines 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 4,816,941
App. No.
07/097,787
Filed
1987-09-16
Granted
1989-03-28
Kind
A