Granted Patent
Utility
US 5,138,685 · App. 07/709,061
Communications cable having microbial resistant water blocking provisions
Inventors:
Candido J. Arroyo, Walter J. Paucke
Patented Case
View Patent ↗
Granted: Aug 11, 1992
Filed: May 30, 1991
Inventors
Candido J. Arroyo
Walter J. Paucke
Assignee (at issue)
AT&T Bell Laboratories
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.