US3158446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas detector
Assignee: Beckman Coulter Inc
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Filing: 1962-01-15
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Granted: 1964-11-24
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Expires: 1982-01-15
Abstract
No abstract record available.
Inventors
- 👤 James C Sternberg
- 👤 David T L Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:02
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/62; G01N30/64; G01N30/68; E; E04; E04B; E04B1/00; E04B1/0007; E04H; E04H1/00; E04H1/12; G01N27/00; G01N27/62; G01N27/626; Y; Y10; Y10T; Y10T436/00; Y10T436/18; Y10T436/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A DETECTOR FOR DETERMINING THE PRESENCE OF VARIOUS COMPOUNDS IN THE EFFLUENT OF A CHROMATOGRAPHIC COLUMN COMPRISING IN COMBINATION: MEANS FOR FORMING A FLOWING THIN FILM OF ELECTROLYTE; MEANS FOR DIRECTING SAID EFFLUENT ONTO SAID THIN FILM OF ELECTROLYTE WHEREBY SAID COMPOUNDS ARE DISSOLVED IN SAID ELECTROLYTE; A PAIR OF METAL ELECTRODES IN CONTACT WITH SAID THIN FILM; AND
Claim 2
Dependent Claim
59 words
A DETECTOR FOR DETERMINING THE PRESENCE OF VARIOUS COMPOUNDS IN THE EFFLUENT OF A CHROMATOGRAPHIC COLUMN COMPRISING IN COMBINATION: MEANS FOR FORMING A FLOWING THIN FILM OF ELECTROLYTE; MEANS FOR DIRECTING SAID EFFLUENT ONTO SAID THIN FILM OF ELECTROLYTE WHEREBY SAID COMPOUNDS ARE DISSOLVED IN SAID ELECTROLYTE; A PAIR OF METAL ELECTRODES IN CONTACT WITH SAID THIN FILM; AND
References Cited (Backward Citations)
US2593878A
Cited
US3001917A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |