US2867243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for changing stop valves
Assignee: Mueller Co
•
Filing: 1955-08-09
•
Granted: 1959-01-06
•
Expires: 1975-08-09
Abstract
No abstract record available.
Inventors
- 👤 Walter J Bowan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:57
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/20; F16L; F16L55/00; F16L55/10; F16L55/12; F16L55/128; F16L55/132; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53552
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US607492A
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US888146A
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US1059053A
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US1644118A
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US1997878A
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US2176260A
Cited
US2299365A
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US2390461A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |