US2587555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mass spectrometer
Assignee: Sunoco Inc
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Filing: 1948-10-26
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Granted: 1952-02-26
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Expires: 1968-10-26
Abstract
No abstract record available.
Inventors
- 👤 Eric A Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:34
CPC Classifications
H; H01; H01J; H01J49/00; H01J49/02; H01J49/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A MASS SPECTROMETER COMPRISING MEANS FOR PRODUCING A DEFLECTED ION STREA, MEANS FOR MODULATING SAID ION STREAM TO PROVIDE ALTERNATING SIGNALS THEREFROM, AND SYNCHRONOUS RECTIFYING MEANS RECEIVING SAID SIGNALS AND SYNCHRONOUS SIGNALS FROM THE MODULATING MEANS TO PROVIDE AN OUTPUT INTEGRATED OVER A TIME INTERVAL EXCEEDING THE PERIOD OF THE MODULATION AND INDICATIVE OF THE INTENSITY OF THE STREAM.
Claim 2
Dependent Claim
59 words
A MASS SPECTROMETER COMPRISING MEANS FOR PRODUCING A DEFLECTED ION STREA, MEANS FOR MODULATING SAID ION STREAM TO PROVIDE ALTERNATING SIGNALS THEREFROM, AND SYNCHRONOUS RECTIFYING MEANS RECEIVING SAID SIGNALS AND SYNCHRONOUS SIGNALS FROM THE MODULATING MEANS TO PROVIDE AN OUTPUT INTEGRATED OVER A TIME INTERVAL EXCEEDING THE PERIOD OF THE MODULATION AND INDICATIVE OF THE INTENSITY OF THE STREAM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |