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US2641024A
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Method of making fin stiffeners for engine cylinders
Assignee: Connecticut Hard Rubber Co
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Filing: 1949-02-28
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Granted: 1953-06-09
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Expires: 1969-02-28
Abstract
No abstract record available.
Inventors
- 👤 Panagrossi Ahmed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:20
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/02; F16F15/04; F16F15/08; F02; F02F; F02F1/00; F02F1/02; F02F1/04; F02F1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1913328A
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US2048807A
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US2218351A
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US2253025A
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US2494649A
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US2455708A
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US2581845A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |