Patent US649860A successfully refreshed from Google Patents.
US649860A
Expired / Lapsed
US
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Apparatus for cutting grooves in metal plates.
Assignee: Individual
•
Filing: 1900-02-10
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Granted: 1900-05-15
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Expires: 1920-02-10
Abstract
No abstract record available.
Inventors
- 👤 Adolph Oppert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:26
CPC Classifications
B; B23; B23C; B23C9/00; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/309184
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) | 1903-05-15 | 1903-11-14 | 1904-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-05-15 | 1907-11-14 | 1908-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-05-15 | 1911-11-14 | 1912-05-15 | $7700.00 | Window Closed / Lapsed |