US2713997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine cooling fin assembly
Assignee: RUCKSTELL Corp
•
Filing: 1950-09-01
•
Granted: 1955-07-26
•
Expires: 1970-09-01
Abstract
No abstract record available.
Inventors
- 👤 Glover E Ruckstell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:37
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/02; F02F1/04; F02F1/06; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/24; Y; Y10; Y10S; Y10S165/00; Y10S165/51; Y10S165/518; Y10S165/522; Y10S165/523
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE265698C
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US2147709A
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US2209304A
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US2210338A
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US2271131A
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US2368403A
Cited
US2537984A
Cited
US2426536A
Cited
GB616798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-25 | 1959-01-24 | 1959-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-25 | 1963-01-24 | 1963-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-25 | 1967-01-24 | 1967-07-26 | $7700.00 | Window Closed / Lapsed |