US2443723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism for adjusting wheel carrying sprockets in vehicle chain drives
Assignee: MASSEY HARRIS CO Ltd
•
Filing: 1945-11-23
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Granted: 1948-06-22
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Expires: 1965-11-23
Abstract
No abstract record available.
Inventors
- 👤 Carroll Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:30
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/04; B60K17/06; B60K17/08; B62; B62M; B62M9/00; B62M9/02; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US635446A
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US721635A
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US904687A
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US1269034A
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US1392421A
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US1683662A
Cited
US2123975A
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US2284441A
Cited
US2258778A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-22 | 1951-12-22 | 1952-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-22 | 1955-12-22 | 1956-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-22 | 1959-12-22 | 1960-06-22 | $7700.00 | Window Closed / Lapsed |