IP Library Granted Patent US 4,856,909
Granted Patent Utility
US 4,856,909 · App. 06/877,146

Pharmacological dissolution method and apparatus

Inventors: Gunvant N. Mehta, Dennis J. Wertan, Wayne M. Grim
Patented Case View Patent ↗
Granted: Aug 15, 1989 Filed: Jun 23, 1986
Inventors
Gunvant N. Mehta
Dennis J. Wertan
Wayne M. Grim
Assignee (at issue)
Rorer Pharmaceutical 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 4,856,909
App. No.
06/877,146
Filed
1986-06-23
Granted
1989-08-15
Kind
A