US2851257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing machine
Assignee: PATTERSON KELLEY CO
•
Filing: 1954-06-15
•
Granted: 1958-09-09
•
Expires: 1974-06-15
Abstract
No abstract record available.
Inventors
- 👤 Lemuel J Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:44
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/80; B01F27/92; B01F27/921; B01F27/9212; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32467; Y10T403/32475; Y10T403/32491; Y10T403/70; Y10T403/7041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE292479C
Cited
US797079A
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US1101199A
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US1734632A
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US2027756A
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US2295098A
Cited
US2626133A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |