US2775439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutter head for driving crosscuts
Assignee: Individual
•
Filing: 1951-03-21
•
Granted: 1956-12-25
•
Expires: 1971-03-21
Abstract
No abstract record available.
Inventors
- 👤 Timothy F Mccarthy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:05
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/28; E21B10/00; E21B10/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1310274A
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US471434A
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US1084871A
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US1272653A
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US1653111A
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US2229086A
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US2196260A
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US2302073A
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US2670046A
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US2664273A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-25 | 1960-06-25 | 1960-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-25 | 1964-06-25 | 1964-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-25 | 1968-06-25 | 1968-12-25 | $7700.00 | Window Closed / Lapsed |