Granted Patent
Utility
US 6,397,408 · App. 09/617,153
Ramped cap unit for a main pool drain cover plate
Inventors:
Thomas E. Veloskey, Jeffrey A. Wichmann
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: Jul 17, 2000
Inventors
Thomas E. Veloskey
Jeffrey A. Wichmann
Assignee (at issue)
Polaris Pool Systems Inc.
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.