US2778291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary renovator
Assignee: Individual
•
Filing: 1954-10-19
•
Granted: 1957-01-22
•
Expires: 1974-10-19
Abstract
No abstract record available.
Inventors
- 👤 James F Kerns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:52
CPC Classifications
A; A01; A01B; A01B45/00; A01B45/02; Y; Y10; Y10S; Y10S111/00; Y10S111/901; Y10S111/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US335966A
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US491887A
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US1057472A
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US1225423A
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US1543515A
Cited
US1932758A
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US2206349A
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US2418937A
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US2585117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |