Patent US3031089A successfully refreshed from Google Patents.
US3031089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Central buffing and draft gear
Assignee: Avon India Rubber Co Ltd
•
Filing: 1959-03-05
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Granted: 1962-04-24
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Expires: 1979-03-05
Abstract
No abstract record available.
Inventors
- 👤 Spencer Jack Crosland
- 👤 Whitmore Reginald Lawrence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:57
CPC Classifications
B; B61; B61G; B61G9/00; B61G9/04; B61G9/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US739912A
Cited
US877943A
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US911874A
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US1877399A
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US2186267A
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US2686667A
Cited
US2713485A
Cited
US2816670A
Cited
US2944681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |