Granted Patent
Utility
US 4,769,207 · App. 06/946,637
Disassembleable and reassembleable sealing device for pipelines, especially for reactor coolant nozzles of reactor pressure vessels, and method for testing the sealing device
Inventors:
Robert Weber, Josef Harrer
Patented Case
View Patent ↗
Granted: Sep 6, 1988
Filed: Dec 29, 1986
Inventors
Robert Weber
Josef Harrer
Assignee (at issue)
Kraftwerk Union Aktiengesellschaft
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.