IP Library › Granted Patent US 4,640,617
Granted Patent Utility
US 4,640,617 · App. 06/707,022

Spectrometers having purge retention during sample loading

Inventors: Norman S. Hughes, Walter M. Doyle
Patented Case View Patent ↗
Granted: Feb 3, 1987 Filed: Feb 28, 1985
Inventors
Norman S. Hughes
Walter M. Doyle
Assignee (at issue)
Laser Precision Corp.

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Quick Facts
Patent No.
US 4,640,617
App. No.
06/707,022
Filed
1985-02-28
Granted
1987-02-03
Kind
A