Granted Patent
Utility
US 6,149,513 · App. 09/351,447
Ceiling grille for air conditioner of recreational vehicle
Inventor:
Jeong-Un Lyu
Patented Case
View Patent ↗
Granted: Nov 21, 2000
Filed: Jul 12, 1999
Inventor
Jeong-Un Lyu
Assignee (at issue)
CARRIER 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.