Patent US2685950A successfully refreshed from Google Patents.
US2685950A
Expired / Lapsed
US
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Automatic stop device for powerdriven flexible members
Assignee: Individual
•
Filing: 1950-10-27
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Granted: 1954-08-10
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Expires: 1970-10-27
Abstract
No abstract record available.
Inventors
- 👤 Chester A Demby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:58
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/02; G11B15/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR642050A
Cited
US2043354A
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US2252853A
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US2192819A
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US2285677A
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US2399113A
Cited
US2365254A
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US2385616A
Cited
US2434406A
Cited
US2552459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |