Patent US2438145A successfully refreshed from Google Patents.
US2438145A
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US
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Method of making manifolds for engines
Assignee: Avco Manufacturing Corp
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Filing: 1942-11-27
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Granted: 1948-03-23
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Expires: 1962-11-27
Abstract
No abstract record available.
Inventors
- 👤 Caminez Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:04
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49398; Y10T29/49826; Y10T29/4984; Y10T29/49844
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1113994A
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US1265706A
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US1628302A
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US1783410A
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GB328402A
Cited
US2016375A
Cited
US2053626A
Cited
US2154077A
Cited
US2167865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-23 | 1951-09-22 | 1952-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-23 | 1955-09-22 | 1956-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-23 | 1959-09-22 | 1960-03-23 | $7700.00 | Window Closed / Lapsed |