US2423602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manifold for internal-combustion engines
Assignee: Individual
•
Filing: 1942-10-13
•
Granted: 1947-07-08
•
Expires: 1962-10-13
Abstract
No abstract record available.
Inventors
- 👤 Edward C Magdeburger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:18
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/20; F01; F01N; F01N3/00; F01N3/02; F01N3/04; F01N3/043; F01N3/046; F02B37/00; F02B37/02; F02B2075/1804; F02B2075/1832; F02B2075/184; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1323685A
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US1895538A
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US1714948A
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US1938737A
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CH138682A
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GB375668A
Cited
FR784514A
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FR786879A
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US2125703A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-07 | 1951-01-06 | 1951-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-07 | 1955-01-06 | 1955-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-07 | 1959-01-06 | 1959-07-08 | $7700.00 | Window Closed / Lapsed |