Patent US2961224A successfully refreshed from Google Patents.
US2961224A
Expired / Lapsed
US
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Pug-mill mixer for asphalt plant
Assignee: Individual
•
Filing: 1958-09-18
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Granted: 1960-11-22
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Expires: 1978-09-18
Abstract
No abstract record available.
Inventors
- 👤 Wright Wilbur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:39
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/02; E01C19/10; E01C19/1013; E01C19/104
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US558876A
Cited
US1466638A
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US1687660A
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US2646959A
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US2745687A
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US2727732A
Cited
US2831325A
Cited
US2807483A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |