Granted Patent
Utility
US 5,608,030 · App. 08/290,377
Process for the preparation of polyacetals
Inventors:
Michael Hoffmockel, Karl-Friedrich M uck, Helmut Schlaf, Karlheinz Burg
Patented Case
View Patent ↗
Granted: Mar 4, 1997
Filed: Aug 15, 1994
Inventors
Michael Hoffmockel
Karl-Friedrich M uck
Helmut Schlaf
Karlheinz Burg
Assignee (at issue)
Hoechst GmbH
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.