US2477755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single driven-shaft combined boring and reciprocable-saw machine
Assignee: Individual
•
Filing: 1948-04-28
•
Granted: 1949-08-02
•
Expires: 1968-04-28
Abstract
No abstract record available.
Inventors
- 👤 Langfelder Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:19
CPC Classifications
B; B23; B23D; B23D57/00; B23D57/0076; B23D49/00; B23D49/08; Y; Y10; Y10T; Y10T408/00; Y10T408/23; Y10T408/31; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18304; Y10T74/18312; Y10T83/00; Y10T83/647; Y10T83/6584; Y10T83/6592; Y10T83/6593
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-01 | 1953-01-31 | 1953-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-01 | 1957-01-31 | 1957-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-01 | 1961-01-31 | 1961-08-02 | $7700.00 | Window Closed / Lapsed |