Granted Patent
Utility
US 4,221,955 · App. 05/935,347
Demand regulated electrode-type steam generator
Inventor:
Larry J. Joslyn
Patented Case
View Patent ↗
Granted: Sep 9, 1980
Filed: Aug 21, 1978
Inventor
Larry J. Joslyn
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.