US2946952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron tube apparatus for detection of atomic hydrogen
Assignee: Pure Oil Co
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Filing: 1957-09-30
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Granted: 1960-07-26
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Expires: 1977-09-30
Abstract
No abstract record available.
Inventors
- 👤 Glenn A Marsh
- 👤 Schaschl Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:26
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/62; G01N27/68; G01N27/70; H; H01; H01J; H01J41/00; H01J41/02; H01J41/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A ELECTRON DISCHARGE TUBE CONSISTING OF A PAIR OF COLD ELECTRODES AND ELECTRICAL CONNECTORS THEREOF, SUPPORTED ON AN INSULATED BASE AND ENCLOSED BY A SHELL EVACUATED TO A HIGH VACUUM, IN WHICH SAID SHELL COMPRISES A HOLLOW, CLOSED-END TUBE OF A MATERIAL HIGHLY PERMEABLE TO HYDROGEN AND HAVING A THIN EXTERNAL COATING OF A CORRODIBLE METAL, LESS NOBLE THAN HYDROGEN, THEREON.
Claim 2
Dependent Claim
61 words
A ELECTRON DISCHARGE TUBE CONSISTING OF A PAIR OF COLD ELECTRODES AND ELECTRICAL CONNECTORS THEREOF, SUPPORTED ON AN INSULATED BASE AND ENCLOSED BY A SHELL EVACUATED TO A HIGH VACUUM, IN WHICH SAID SHELL COMPRISES A HOLLOW, CLOSED-END TUBE OF A MATERIAL HIGHLY PERMEABLE TO HYDROGEN AND HAVING A THIN EXTERNAL COATING OF A CORRODIBLE METAL, LESS NOBLE THAN HYDROGEN, THEREON.
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) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |