IP Library › Granted Patent US 4,654,311
Granted Patent Utility
US 4,654,311 · App. 06/621,301

Serum pretreatment for digoxin assay

Inventors: Pyare Khanna, Roberta D. Ernst, Anne J. Stone
Patented Case View Patent ↗
Granted: Mar 31, 1987 Filed: Jun 15, 1984
Inventors
Pyare Khanna
Roberta D. Ernst
Anne J. Stone
Assignee (at issue)
Syntex (U.S.A.) LLC

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 4,654,311
App. No.
06/621,301
Filed
1984-06-15
Granted
1987-03-31
Kind
A