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Patent US2811187A successfully refreshed from Google Patents.
US2811187A
Expired / Lapsed
US
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Dovetail countersinking tool for dowel connections
Assignee: Individual
•
Filing: 1954-12-10
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Granted: 1957-10-29
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Expires: 1974-12-10
Abstract
No abstract record available.
Inventors
- 👤 Loam Fay
- 👤 Loam Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:18
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/0018; B23B51/0045; Y; Y10; Y10T; Y10T408/00; Y10T408/89; Y10T408/909; Y10T82/00; Y10T82/12; Y10T82/125; Y10T82/128
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |