US2442408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston cooling construction
Assignee: SPECIALLOID Ltd
•
Filing: 1945-11-29
•
Granted: 1948-06-01
•
Expires: 1965-11-29
Abstract
No abstract record available.
Inventors
- 👤 Graham Eric Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:48
CPC Classifications
C; C07; C07D; C07D513/00; C07D513/02; C07D513/04; F; F02; F02F; F02F3/00; F02F3/0015; F02F3/003; F02F3/16; F02F3/20; F02F3/22; G; G03; G03C; G03C1/00; G03C1/76; G03C1/815; G03C1/8155; F05; F05C; F05C2201/00; F05C2201/04; F05C2201/0433; F05C2201/0448
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1464612A
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GB243077A
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US1856107A
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US1944708A
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US2046196A
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US2126627A
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US2273986A
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US2241629A
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US2362158A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-01 | 1951-12-01 | 1952-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-01 | 1955-12-01 | 1956-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-01 | 1959-12-01 | 1960-06-01 | $7700.00 | Window Closed / Lapsed |