Granted Patent
Utility
US 6,132,420 · App. 08/970,530
Osmotic delivery system and method for enhancing start-up and performance of osmotic delivery systems
Inventors:
Keith E. Dionne, Scott D. Lautenbach
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Nov 14, 1997
Inventors
Keith E. Dionne
Scott D. Lautenbach
Assignee (at issue)
ALZA 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.