US2693338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve
Assignee: Individual
•
Filing: 1950-05-05
•
Granted: 1954-11-02
•
Expires: 1970-05-05
Abstract
No abstract record available.
Inventors
- 👤 Grunt Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:36
CPC Classifications
F; F16; F16K; F16K1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US132617A
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US127743A
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GB189823507A
Cited
US734505A
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US726249A
Cited
US746107A
Cited
US948850A
Cited
US1170813A
Cited
GB109741A
Cited
US1407098A
Cited
US1470197A
Cited
US1953637A
Cited
US2334395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-01 | 1958-05-03 | 1958-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-01 | 1962-05-03 | 1962-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-01 | 1966-05-03 | 1966-11-02 | $7700.00 | Window Closed / Lapsed |