Patent US3224174A successfully refreshed from Google Patents.
US2644482A
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Fluid flow regulator
Assignee: Joy Manufacturing Co
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Filing: 1944-11-13
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Granted: 1953-07-07
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Expires: 1964-11-13
Abstract
No abstract record available.
Inventors
- 👤 Mccallum Robert Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:55
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0193; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/7788; Y10T137/7792; Y10T137/794; Y10T137/8049
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US598935A
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US750752A
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US991641A
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US1699676A
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US1993527A
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US2069022A
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US2258758A
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US2255787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |