Patent US2644349A successfully refreshed from Google Patents.
US2644349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic screw machinery
Assignee: Individual
•
Filing: 1952-04-26
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Granted: 1953-07-07
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Expires: 1972-04-26
Abstract
No abstract record available.
Inventors
- 👤 Abrahamsen Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:01
CPC Classifications
B; B23; B23B; B23B9/00; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5178; Y10T408/00; Y10T408/36; Y10T408/38; Y10T408/3806; Y10T408/65; Y10T408/675; Y10T408/6757; Y10T408/83; Y10T408/94; Y10T82/00; Y10T82/25; Y10T82/2524
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1522124A
Cited
US2525805A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |