US2508689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corncob buttering machine
Assignee: Individual
•
Filing: 1947-06-25
•
Granted: 1950-05-23
•
Expires: 1967-06-25
Abstract
No abstract record available.
Inventors
- 👤 Paul W Schick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:07
CPC Classifications
A; A23; A23P; A23P20/00; A23P20/10; A23P20/15
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US615627A
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US1195854A
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US693561A
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US942951A
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US1153585A
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US1675541A
Cited
US2153295A
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US2333285A
Cited
US2357679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-22 | 1953-11-21 | 1954-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-22 | 1957-11-21 | 1958-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-22 | 1961-11-21 | 1962-05-23 | $7700.00 | Window Closed / Lapsed |