Patent US2985423A successfully refreshed from Google Patents.
US2985423A
Expired / Lapsed
US
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Brine tank valve
Assignee: Union Tank Car Co
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Filing: 1958-08-27
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Granted: 1961-05-23
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Expires: 1978-08-27
Abstract
No abstract record available.
Inventors
- 👤 Edward J Tischler
- 👤 Benjamin H Kryzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:35
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; C; C02; C02F; C02F1/00; C02F1/42; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7303; Y10T137/7313; Y10T137/7323
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US494402A
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US767118A
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US1295394A
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US2087913A
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US2196798A
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US2603446A
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US2809656A
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US2827915A
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US2849019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |