Patent US3213254A successfully refreshed from Google Patents.
US3213254A
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US
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Arc resistant orifice embodying fluorocarbon resins and a plastic member
Assignee: Westinghouse Electric Corp
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Filing: 1962-12-31
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Granted: 1965-10-19
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Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Albert P Strom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:49
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B17/00; H01B17/50; Y; Y10; Y10S; Y10S174/00; Y10S174/01; Y10T; Y10T428/00; Y10T428/13; Y10T428/131; Y10T428/1314
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2523082A
Cited
US2531007A
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DE843561C
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US2897386A
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US2924690A
Cited
US3002231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |