Patent US2640388A successfully refreshed from Google Patents.
US2610550A
Expired / Lapsed
US
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Fabricating mechanism
Assignee: Individual
•
Filing: 1947-01-28
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Granted: 1952-09-16
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Expires: 1967-01-28
Abstract
No abstract record available.
Inventors
- 👤 William S Touchman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:53
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/48; B23Q1/4804; B23Q1/4809; B23Q27/00; B23Q35/00; B23Q35/005; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/306664; Y10T409/306776; Y10T409/306832; Y10T82/00; Y10T82/14; Y10T82/148
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) | 1955-09-16 | 1956-03-17 | 1956-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-16 | 1960-03-17 | 1960-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-16 | 1964-03-17 | 1964-09-16 | $7700.00 | Window Closed / Lapsed |