Granted Patent
Utility
US 4,268,243 · App. 06/060,721
Machine for moulding articles from thermoplastic polymeric materials
Inventors:
Lev N. Koshkin, Valery M. Semenov, Jury A. Repin, Anatoly M. Pozdnyakov, Nikolai Z. Lutskov
Patented Case
View Patent ↗
Granted: May 19, 1981
Filed: Jul 25, 1979
Inventors
Lev N. Koshkin
Valery M. Semenov
Jury A. Repin
Anatoly M. Pozdnyakov
Nikolai Z. Lutskov
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.