Patent US2171937A successfully refreshed from Google Patents.
US2171937A
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Apparatus for fluid control
Assignee: Mueller Co
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Filing: 1936-09-14
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Granted: 1939-09-05
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Expires: 1956-09-14
Abstract
No abstract record available.
Inventors
- 👤 Larry Timothy Allan
- 👤 Earl E Cline
- 👤 Orville J Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:38
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16L55/12; F16L55/124; F16L55/105; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/612; Y10T137/6123
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-09-04 | 1943-03-06 | 1943-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-09-04 | 1947-03-06 | 1947-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-09-04 | 1951-03-06 | 1951-09-05 | $7700.00 | Window Closed / Lapsed |