Patent US2884298A successfully refreshed from Google Patents.
US2884298A
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Method and apparatus for treating gas-filled tubes
Assignee: Individual
•
Filing: 1956-09-24
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Granted: 1959-04-28
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Expires: 1976-09-24
Abstract
No abstract record available.
Inventors
- 👤 Thomas T Bryen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:49
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/50; H01J2893/00; H01J2893/0072; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/82
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733973A
Cited
GB216396A
Cited
US2073190A
Cited
US2304714A
Cited
US2324390A
Cited
US2413707A
Cited
US2452401A
Cited
US2774645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |