Granted Patent
Utility
US 5,680,273 · App. 08/626,917
Method and apparatus employing system for recirculating liquid in a controlled enviroment
Inventor:
Walter Wong
Patented Case
View Patent ↗
Granted: Oct 21, 1997
Filed: Apr 3, 1996
Inventor
Walter Wong
Assignee (at issue)
Seagate Technology LLC
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.