Patent US695606A successfully refreshed from Google Patents.
US695606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens system.
Assignee: Individual
•
Filing: 1901-07-03
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Granted: 1902-03-18
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Expires: 1921-07-03
Abstract
No abstract record available.
Inventors
- 👤 Edward Ferdinand Gruen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:29
CPC Classifications
G; G02; G02B; G02B3/00; G02B3/12; G02B3/14; Y; Y10; Y10S; Y10S116/00; Y10S116/15
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) | 1905-03-17 | 1905-09-16 | 1906-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-03-17 | 1909-09-16 | 1910-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-03-17 | 1913-09-16 | 1914-03-18 | $7700.00 | Window Closed / Lapsed |