Patent US2607901A successfully refreshed from Google Patents.
US2607901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic discharge device
Assignee: AT&T Inc
•
Filing: 1946-12-31
•
Granted: 1952-08-19
•
Expires: 1966-12-31
Abstract
No abstract record available.
Inventors
- 👤 Jr George H Rockwood
- 👤 Robert L Vance
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:21
CPC Classifications
H; H01; H01J; H01J17/00; H01J17/02; H01J17/22; H01J17/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A GLOW DISCHARGE COMPRISING A VESSEL CONTAINING AN IONIZABLE GAS AT LOW PRESSURE, A PAIR OF PARALLEL TUBULAR ELECTRODES MOUNTED THEREIN HAVING AN ELECTRON EMISSIVE COATING THEREON, AND A GETTER COMPOSITION ON THE OPEN END OF EACH ELECTRODE CONSISTING OF 80 PER CENT BARIUM BERYLLIATE AND 20 PER CENT TITANIUM IN A BINDER.
Claim 2
Dependent Claim
53 words
A GLOW DISCHARGE COMPRISING A VESSEL CONTAINING AN IONIZABLE GAS AT LOW PRESSURE, A PAIR OF PARALLEL TUBULAR ELECTRODES MOUNTED THEREIN HAVING AN ELECTRON EMISSIVE COATING THEREON, AND A GETTER COMPOSITION ON THE OPEN END OF EACH ELECTRODE CONSISTING OF 80 PER CENT BARIUM BERYLLIATE AND 20 PER CENT TITANIUM IN A BINDER.
References Cited (Backward Citations)
US1610892A
Cited
US1661235A
Cited
US1873730A
Cited
US1852020A
Cited
US2057183A
Cited
US2213182A
Cited
US1965585A
Cited
US2249672A
Cited
US2173258A
Cited
US2173259A
Cited
US2223977A
Cited
US2403745A
Cited
US2443633A
Cited
US2474335A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |