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Patent US2550982A successfully refreshed from Google Patents.
US766482A
Expired / Lapsed
US
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Lens-grinding machine.
Assignee: Individual
•
Filing: 1903-10-12
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Granted: 1904-08-02
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Expires: 1923-10-12
Abstract
No abstract record available.
Inventors
- 👤 Walter G Wolfe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:41
CPC Classifications
B; B24; B24B; B24B13/00; B24B13/02
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) | 1907-08-02 | 1908-02-01 | 1908-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-08-02 | 1912-02-01 | 1912-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-08-02 | 1916-02-01 | 1916-08-02 | $7700.00 | Window Closed / Lapsed |