Patent US1934568A successfully refreshed from Google Patents.
US1934568A
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US
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Screw holding device
Assignee: TRASKRUV AB
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Filing: 1931-07-28
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Granted: 1933-11-07
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Expires: 1951-07-28
Abstract
No abstract record available.
Inventors
- 👤 Stenman Per Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:59
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/19; B23B31/24; B23B31/28; B23Q; B23Q3/00; B23Q3/15; B23Q3/154; B23Q3/1543; B23B2270/00; B23B2270/38; Y; Y10; Y10T; Y10T408/00; Y10T408/52; Y10T408/54; Y10T408/55; Y10T408/563; Y10T408/5633; Y10T408/56337
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1936-11-06 | 1937-05-08 | 1937-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-11-06 | 1941-05-08 | 1941-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-11-06 | 1945-05-08 | 1945-11-07 | $7700.00 | Window Closed / Lapsed |