Granted Patent
Utility
US 5,006,607 · App. 07/416,203
Dispersant system for making polyvinyl chloride which produces low color chlorinated polyvinyl chloride
Inventors:
Zaev Sharaby, Robert G. Vielhaber
Patented Case
View Patent ↗
Granted: Apr 9, 1991
Filed: Oct 2, 1989
Inventors
Zaev Sharaby
Robert G. Vielhaber
Assignee (at issue)
B. F. Goodrich Company
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.