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Patent US2686058A successfully refreshed from Google Patents.
US2686058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Workholder for machine tools
Assignee: Individual
•
Filing: 1951-10-20
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Granted: 1954-08-10
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Expires: 1971-10-20
Abstract
No abstract record available.
Inventors
- 👤 Knut F N Zetterberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:31
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/16; B23B31/1627; B23B31/16275; Y; Y10; Y10T; Y10T279/00; Y10T279/19; Y10T279/1986
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US92541A
Cited
GB191003711A
Cited
US1011716A
Cited
DE679100C
Cited
US2463292A
Cited
US2523374A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |