Patent US2768807A successfully refreshed from Google Patents.
US2768807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve structure for faucet
Assignee: Individual
•
Filing: 1952-12-24
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Granted: 1956-10-30
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Expires: 1972-12-24
Abstract
No abstract record available.
Inventors
- 👤 Herman S Cahen
- 👤 Alfred B Cahen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:51
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/36; F16K1/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US978929A
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US977723A
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US1919856A
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US2591274A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |