Granted Patent
Utility
US 5,556,589 · App. 08/301,914
Process of using a spin pack for multicomponent fibers
Inventor:
Shiv Sibal
Patented Case
View Patent ↗
Granted: Sep 17, 1996
Filed: Sep 7, 1994
Inventor
Shiv Sibal
Assignee (at issue)
HERCULES LLC
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.