Patent US2878796A successfully refreshed from Google Patents.
US2878796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve timing gear for internal combustion engines
Assignee: Individual
•
Filing: 1956-05-29
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Granted: 1959-03-24
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Expires: 1976-05-29
Abstract
No abstract record available.
Inventors
- 👤 Mannerstedt Folke Carl Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:50
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/02; F01L1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE369394C
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US1515344A
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US1660315A
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US1792836A
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US1812787A
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US2354988A
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US2380051A
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US2565022A
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US2410660A
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US2720874A
Cited
US2773490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |