Granted Patent
Utility
US 4,668,231 · App. 06/696,772
Implantable hand-operable dispensers for fluid medicaments
Inventors:
Gerrit de Vries, Jozef G. M. Leuveld, Johan W. Kleijn
Patented Case
View Patent ↗
Granted: May 26, 1987
Filed: Jan 31, 1985
Inventors
Gerrit de Vries
Jozef G. M. Leuveld
Johan W. Kleijn
Assignee (at issue)
CORDIS 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.