Patent US2649661A successfully refreshed from Google Patents.
US2649661A
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Regulator valve
Assignee: KANPP MONARCH Co
•
Filing: 1946-08-03
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Granted: 1953-08-25
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Expires: 1966-08-03
Abstract
No abstract record available.
Inventors
- 👤 Lamb Ollo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:49
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0655; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7822
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
GB189908677A
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US915204A
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US973609A
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FR449418A
Cited
US1045197A
Cited
US1885000A
Cited
DE684872C
Cited
US2261364A
Cited
US2270304A
Cited
US2287992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |