US3544166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutter tools and mountings therefor
Assignee: Austin Hoy and Co Ltd
•
Filing: 1968-11-19
•
Granted: 1970-12-01
•
Expires: 1988-11-19
Abstract
No abstract record available.
Inventors
- 👤 Sidney E Proctor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:50
CPC Classifications
E; E21; E21C; E21C35/00; E21C35/18; E21C35/188; E21C35/19; E21C35/193; E21C35/1933; E21C35/1936
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US640622A
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US888256A
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US993474A
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US2328134A
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US2802642A
Cited
US2890021A
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US3117386A
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US3342531A
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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) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |