Granted Patent
Utility
US 4,334,955 · App. 06/183,945
Device for controlling evaporation of a liquid
Inventors:
Siegfried Zoeke, Anton Stuerzer
Patented Case
View Patent ↗
Granted: Jun 15, 1982
Filed: Sep 4, 1980
Inventors
Siegfried Zoeke
Anton Stuerzer
Assignee (at issue)
Siemens Aktiengesellschaft
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.