Patent US2858801A successfully refreshed from Google Patents.
Patent US775557A successfully refreshed from Google Patents.
US775557A
Expired / Lapsed
US
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Ratchet mechanism.
Assignee: SPENCER LENS CO
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Filing: 1904-02-15
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Granted: 1904-11-22
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Expires: 1924-02-15
Abstract
No abstract record available.
Inventors
- 👤 Carl F Dieckmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:29
CPC Classifications
F; F16; F16H; F16H19/00; F16H19/02; F16H19/04; F16H19/043; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1503; Y10T74/1508; Y10T74/1558; Y10T74/1565; Y10T74/1566; Y10T74/1568; Y10T74/1569
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) | 1907-11-22 | 1908-05-23 | 1908-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-11-22 | 1912-05-23 | 1912-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-11-22 | 1916-05-23 | 1916-11-22 | $7700.00 | Window Closed / Lapsed |