Patent US4734905A successfully refreshed from Google Patents.
Patent US2434020A successfully refreshed from Google Patents.
US2434020A
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Regulating valve
Assignee: Malsbary Manufacturing Co
•
Filing: 1942-12-26
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Granted: 1948-01-06
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Expires: 1962-12-26
Abstract
No abstract record available.
Inventors
- 👤 Walter W Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:50
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/02; G05D23/024; G05D23/026; G05D23/027; F; F23; F23D; F23D11/00; F23D11/36; F23D11/46; F23K; F23K5/00; F23K5/02; F23K5/14; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2511; Y10T137/7722; Y10T137/7781
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1380787A
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US1585732A
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US2070411A
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US1770273A
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US1899396A
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US2064343A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-05 | 1951-07-07 | 1952-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-05 | 1955-07-07 | 1956-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-05 | 1959-07-07 | 1960-01-06 | $7700.00 | Window Closed / Lapsed |