Patent US1692103A successfully refreshed from Google Patents.
US1692103A
Expired / Lapsed
US
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Engraving machine
Assignee: Individual
•
Filing: 1924-05-07
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Granted: 1928-11-20
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Expires: 1944-05-07
Abstract
No abstract record available.
Inventors
- 👤 Charles F Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:27
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/20; B44; B44B; B44B3/00; B44B3/001; B44B3/002; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/301232
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) | 1931-11-20 | 1932-05-21 | 1932-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-11-20 | 1936-05-21 | 1936-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-11-20 | 1940-05-21 | 1940-11-20 | $7700.00 | Window Closed / Lapsed |