Granted Patent
Utility
US 4,434,962 · App. 06/350,838
Flange having an outer and an inner circumferential sealing face and apparatus, comprising such flange, for producing enveloping casts about elongated bodies
Inventors:
Felix Bleuel, Christian Bosshard
Patented Case
View Patent ↗
Granted: Mar 6, 1984
Filed: Feb 22, 1982
Inventors
Felix Bleuel
Christian Bosshard
Assignee (at issue)
Ciba-Geigy
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.