Granted Patent
Utility
US 5,798,252 · App. 08/647,489
Encapsulated product containing essential oil and dyed microbial cell wall material
Inventors:
John Charles Hobson, Roderick Greenshields
Patented Case
View Patent ↗
Granted: Aug 25, 1998
Filed: May 14, 1996
Inventors
John Charles Hobson
Roderick Greenshields
Assignee (at issue)
CPC International, 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.