US2648121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filing machine
Assignee: MECHANICAL FINISHING CO
•
Filing: 1947-10-18
•
Granted: 1953-08-11
•
Expires: 1967-10-18
Abstract
No abstract record available.
Inventors
- 👤 Lawrence J Tansey
- 👤 John B Hoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:58
CPC Classifications
B; B24; B24B; B24B23/00; B24B23/04; B24B23/043; B23; B23D; B23D67/00; Y; Y10; Y10T; Y10T29/00; Y10T29/44; Y10T29/446; Y10T407/00; Y10T407/18
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) | 1956-08-10 | 1957-02-09 | 1957-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-10 | 1961-02-09 | 1961-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-10 | 1965-02-09 | 1965-08-11 | $7700.00 | Window Closed / Lapsed |