Patent EP0475282A2 successfully refreshed from Google Patents.
US3045692A
Expired / Lapsed
US
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Fluid seal valve
Assignee: United Carbon Co Inc
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Filing: 1961-08-15
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Granted: 1962-07-24
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Expires: 1981-08-15
Abstract
No abstract record available.
Inventors
- 👤 Richard H Reynolds
- 👤 Jr Andrew L Askew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:09
CPC Classifications
F; F16; F16K; F16K25/00; F16K25/02; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4259
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US941024A
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US1329016A
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US1549969A
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US1742716A
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US1725337A
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US1990309A
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US2315058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |