Patent US2801874A successfully refreshed from Google Patents.
US2801874A
Expired / Lapsed
US
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Apparatus for effecting automatic batching of composite mixtures
Assignee: Automatic Temperature Control Co Inc
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Filing: 1952-04-03
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Granted: 1957-08-06
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Expires: 1972-04-03
Abstract
No abstract record available.
Inventors
- 👤 William D Macgeorge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:19
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/02; G05D11/13; G05D11/131; G05D11/133; G05D11/134; G01; G01G; G01G19/00; G01G19/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2044017A
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US1889663A
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US2208284A
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US2285765A
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US2432422A
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US2398643A
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US2632599A
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US2559919A
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US2564221A
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US2607555A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |