IP Library › Granted Patent US 5,109,481
Granted Patent Utility
US 5,109,481 · App. 07/077,202

Quadratic interpolation for shaded image generation

Inventors: Olin Lathrop, David B. Kirk, Douglas A. Voorhies
Patented Case View Patent ↗
Granted: Apr 28, 1992 Filed: Jul 24, 1987
Inventors
Olin Lathrop
David B. Kirk
Douglas A. Voorhies
Assignee (at issue)
Hewlett-Packard Company, L.P.

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 5,109,481
App. No.
07/077,202
Filed
1987-07-24
Granted
1992-04-28
Kind
A