Patent US2653790A successfully refreshed from Google Patents.
US2653790A
Expired / Lapsed
US
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Tamperproof valve or the like
Assignee: Mueller Co
•
Filing: 1950-01-19
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Granted: 1953-09-29
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Expires: 1970-01-19
Abstract
No abstract record available.
Inventors
- 👤 Walter J Bowan
- 👤 Wallace E Gould
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:38
CPC Classifications
F; F16; F16K; F16K35/00; F16K35/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US923090A
Cited
US1101868A
Cited
US1559585A
Cited
US1898577A
Cited
US2138767A
Cited
US2133580A
Cited
US2342664A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |