Granted Patent
Utility
US 4,262,248 · App. 05/958,806
System for servicing process instrumentation
Inventors:
Joseph Vincelli, Donald P. Persons
Patented Case
View Patent ↗
Granted: Apr 14, 1981
Filed: Nov 8, 1978
Inventors
Joseph Vincelli
Donald P. Persons
Assignee (at issue)
Sybron 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.