US2444108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal-combustion engine
Assignee: NORMAN I BOOK
•
Filing: 1944-05-01
•
Granted: 1948-06-29
•
Expires: 1964-05-01
Abstract
No abstract record available.
Inventors
- 👤 Orlo C Norton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:40
CPC Classifications
F; F02; F02D; F02D15/00; F02D15/04; F16; F16C; F16C7/00; F16C7/04; F16C2360/00; F16C2360/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1313414A
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AT13895B
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US906177A
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US922613A
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GB176233A
Cited
US1439626A
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US1409776A
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US1612163A
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US1637245A
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US2134995A
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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) | 1951-06-29 | 1951-12-29 | 1952-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-29 | 1955-12-29 | 1956-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-29 | 1959-12-29 | 1960-06-29 | $7700.00 | Window Closed / Lapsed |