Patent US2673555A successfully refreshed from Google Patents.
US2673555A
Expired / Lapsed
US
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Mechanical self-adjusting valve lifter
Assignee: Individual
•
Filing: 1951-02-23
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Granted: 1954-03-30
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Expires: 1971-02-23
Abstract
No abstract record available.
Inventors
- 👤 Glenn T Randol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:40
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/20; F01L1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE21802E
Cited
US1457819A
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US1663345A
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US1624497A
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US1806229A
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US2061167A
Cited
US2326780A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-29 | 1957-09-28 | 1958-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-29 | 1961-09-28 | 1962-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-29 | 1965-09-28 | 1966-03-30 | $7700.00 | Window Closed / Lapsed |