Granted Patent
Utility
US 4,344,808 · App. 05/858,811
Method for manufacturing synthetic resin laminate tubing having a high bursting strength
Inventors:
Daniel P. Healey, Jr., Delbert L. George
Patented Case
View Patent ↗
Granted: Aug 17, 1982
Filed: Dec 8, 1977
Inventors
Daniel P. Healey, Jr.
Delbert L. George
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.