Granted Patent
Utility
US 4,882,166 · App. 07/088,539
Compositions comprising encapsulated particles and their preparation
Inventors:
Neil B. Graham, Abdul Rashid, Koritala P. Rao
Patented Case
View Patent ↗
Granted: Nov 21, 1989
Filed: Aug 20, 1987
Inventors
Neil B. Graham
Abdul Rashid
Koritala P. Rao
Assignee (at issue)
NATIONAL RESEARCH DEVELOPMENT 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.