Granted Patent
Utility
US 4,963,489 · App. 07/242,096
Three-dimensional cell and tissue culture system
Inventors:
Gail K. Naughton, Brian A. Naughton
Patented Case
View Patent ↗
Granted: Oct 16, 1990
Filed: Sep 8, 1988
Inventors
Gail K. Naughton
Brian A. Naughton
Assignee (at issue)
Marrow-Tech Incorporated
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.