Granted Patent
Utility
US 4,276,249 · App. 06/078,873
Processes for sealing hollow fiber membranes arranged in the form of a bundle
Inventor:
Harry P. Holladay
Patented Case
View Patent ↗
Granted: Jun 30, 1981
Filed: Sep 26, 1979
Inventor
Harry P. Holladay
Assignee (at issue)
Monsanto Company
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.