Patent US794918A successfully refreshed from Google Patents.
US794918A
Expired / Lapsed
US
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Pneumatic ophthalmic-chart cabinet.
Assignee: Individual
•
Filing: 1905-02-17
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Granted: 1905-07-18
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Expires: 1925-02-17
Abstract
No abstract record available.
Inventors
- 👤 Louis O Bisang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:56
CPC Classifications
G; G09; G09F; G09F7/00; G09F7/18; G09F7/22; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1526; Y10T74/1529
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) | 1908-07-17 | 1909-01-16 | 1909-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-07-17 | 1913-01-16 | 1913-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-07-17 | 1917-01-16 | 1917-07-18 | $7700.00 | Window Closed / Lapsed |