Patent US2614547A successfully refreshed from Google Patents.
US2614547A
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US
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Hydraulic valve tappet operable to vary valve-lift and valve-timing
Assignee: Individual
•
Filing: 1946-07-22
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Granted: 1952-10-21
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Expires: 1966-07-22
Abstract
No abstract record available.
Inventors
- 👤 Helmuth A Meinecke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:31
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/20; F01L1/22; F01L1/24; F01L1/245; F01L1/25; F01L1/252; F01L13/00; F01L13/0015; F01L13/0031
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB213499A
Cited
US1727790A
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US1930260A
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US1994223A
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US2011864A
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US2090795A
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US2175465A
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US2484109A
Cited
US2393793A
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US2539877A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |