Patent US2840158A successfully refreshed from Google Patents.
US2840158A
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US
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Assignee: Roll-O-Matic Chain Co
•
Filing: 1954-05-26
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Granted: 1958-06-24
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Expires: 1974-05-26
Abstract
No abstract record available.
Inventors
- 👤 Earnest M Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:11
CPC Classifications
B; B60; B60J; B60J5/00; B60J5/10; B60J5/108; B60J5/12; B60J5/125; B62; B62D; B62D33/00; B62D33/04; Y; Y10; Y10T; Y10T292/00; Y10T292/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1016479A
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US1167554A
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US1667520A
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US1727487A
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US2088072A
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US2136042A
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US2188163A
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US2612221A
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US2596850A
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US2678690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |