US3472090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprocket with replaceable tooth segment
Assignee: ERNEST L DAWE
•
Filing: 1968-11-25
•
Granted: 1969-10-14
•
Expires: 1988-11-25
Abstract
No abstract record available.
Inventors
- 👤 Ernest L Dawe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:37
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/12; B62D55/135; F; F16; F16H; F16H55/00; F16H55/02; F16H55/30; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/1987; Y10T74/19893; Y10T74/19921; Y10T74/19926; Y10T74/1993
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US402448A
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US588577A
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US688570A
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US697577A
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US1206172A
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US1433923A
Cited
US1378156A
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US3111859A
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US3083585A
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US3168836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |