Patent US696788A successfully refreshed from Google Patents.
US696788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical objective.
Assignee: Individual
•
Filing: 1901-02-25
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Granted: 1902-04-01
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Expires: 1921-02-25
Abstract
No abstract record available.
Inventors
- 👤 Clile C Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:25
CPC Classifications
G; G02; G02B; G02B15/00; G02B15/14; G02B15/142; G02B15/1421
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) | 1905-03-31 | 1905-09-30 | 1906-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-03-31 | 1909-09-30 | 1910-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-03-31 | 1913-09-30 | 1914-04-01 | $7700.00 | Window Closed / Lapsed |