Granted Patent
Utility
US 4,787,188 · App. 07/106,991
Stress plate and method of using same for securing a roof membrane to a roof deck
Inventor:
Colin Murphy
Patented Case
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Granted: Nov 29, 1988
Filed: Oct 5, 1987
Inventor
Colin Murphy
Assignee (at issue)
Engineered Construction Components
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.