Patent US2540513A successfully refreshed from Google Patents.
US2540513A
Expired / Lapsed
US
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Attachment for tapping holes, screwing up studs, and like operations
Assignee: Individual
•
Filing: 1946-07-26
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Granted: 1951-02-06
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Expires: 1966-07-26
Abstract
No abstract record available.
Inventors
- 👤 Dodd John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:30
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/08; B23B31/083; B23B31/086; B23G; B23G1/00; B23G1/44; B23G1/46; B23Q; B23Q11/00; B23Q11/04; F; F16; F16B; F16B12/00; F16B12/40; F16D; F16D7/00; F16D7/02; F16D7/024; F16D7/025; F16D7/027; Y; Y10; Y10T; Y10T408/00; Y10T408/70; Y10T408/72; Y10T408/94; Y10T408/95
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US357025A
Cited
US632810A
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US768202A
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US915568A
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US1657274A
Cited
US1828370A
Cited
US1974345A
Cited
US2244143A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |