Granted Patent
Utility
US 4,143,786 · App. 05/879,297
Additive cap and snap-on retention ring for medical liquid container
Inventors:
Allan Goldberg, Douglas J. Malewicki
Patented Case
View Patent ↗
Granted: Mar 13, 1979
Filed: Feb 21, 1978
Inventors
Allan Goldberg
Douglas J. Malewicki
Assignee (at issue)
American Hospital Supply Corp.
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.