Granted Patent
Utility
US 4,594,492 · App. 06/617,527
Microwave package including a resiliently biased browning layer
Inventor:
Raymond V. Maroszek
Patented Case
View Patent ↗
Granted: Jun 10, 1986
Filed: Jun 4, 1984
Inventor
Raymond V. Maroszek
Assignee (at issue)
James River 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.