US2699801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packingless valve with secondary seal and failure indicator
Assignee: Individual
•
Filing: 1949-10-20
•
Granted: 1955-01-18
•
Expires: 1969-10-20
Abstract
No abstract record available.
Inventors
- 👤 Schleyer Victor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:31
CPC Classifications
F; F16; F16K; F16K41/00; F16K41/10; F16K41/12; Y; Y10; Y10T; Y10T137/00; Y10T137/5109; Y10T137/598; Y10T137/6161; Y10T137/6164; Y10T137/8158; Y10T137/8225; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2002883A
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US1983106A
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US1947257A
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US1992902A
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DE647467C
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US2124015A
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DE697658C
Cited
US2225675A
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US2202735A
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US2382235A
Cited
US2454160A
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US2469109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-17 | 1958-07-19 | 1959-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-17 | 1962-07-19 | 1963-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-17 | 1966-07-19 | 1967-01-18 | $7700.00 | Window Closed / Lapsed |