IP Library Granted Patent US 4,755,670
Granted Patent Utility
US 4,755,670 · App. 06/914,016

Fourtier transform quadrupole mass spectrometer and method

Inventors: John E. P. Syka, William J. Fies
Patented Case View Patent ↗
Granted: Jul 5, 1988 Filed: Oct 1, 1986
Inventors
John E. P. Syka
William J. Fies
Assignee (at issue)
Finnigan Corporation

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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,755,670
App. No.
06/914,016
Filed
1986-10-01
Granted
1988-07-05
Kind
A