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Time-of-flight mass spectrometer with feedback means from the detector to the low source and a specific counter

US 3,340,395 A · Inventors: WEBB JAMES E

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Listed from its USPTO record in Patent Yard's full-term archive. Its claims, description and drawings are in the USPTO PDF and on Google Patents, and the Claude kit works from them.

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Why it's free to use

  • Granted September 5, 1967. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by September 5, 1984.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledJune 22, 1964
GrantedSeptember 5, 1967
Term endedSeptember 5, 1984
Application number—
Classification (CPC)H01J49/40
Length4 pages

Timeline

Timeline From USPTO dates

1965196719691971197319751977197919811983Application filedJune 22, 1964Patent grantedSep 5, 1967Term endedSep 5, 1984

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Official USPTO records

Full published documentText and every drawing sheet as a PDF.USPTOFile historyStatus, office actions, notices, fee records and petitions.USPTO Patent CenterPatent Public Search recordSearchable full text and bibliographic data.USPTO

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