US2885227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure-tight seal
Assignee: RCA Corp
•
Filing: 1954-05-24
•
Granted: 1959-05-05
•
Expires: 1974-05-24
Abstract
No abstract record available.
Inventors
- 👤 Gustav F Burger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:55
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/02; H01J37/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1208454A
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US2330220A
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US2417494A
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US2462493A
Cited
US2649313A
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US2510417A
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US2621885A
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US2606344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |