Patent US2931232A successfully refreshed from Google Patents.
US2931232A
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US
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Variable vertical speed mixer
Assignee: Capitol Products Corp
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Filing: 1957-05-13
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Granted: 1960-04-05
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Expires: 1977-05-13
Abstract
No abstract record available.
Inventors
- 👤 Martin Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:48
CPC Classifications
A; A21; A21C; A21C1/00; A21C1/14; A21C1/1465; A21C1/147; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19442; Y10T74/19451
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1824328A
Cited
US2024282A
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US2046784A
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US2185155A
Cited
US2457612A
Cited
FR927949A
Cited
FR1044064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |