Patent US2855914A successfully refreshed from Google Patents.
US2855914A
Expired / Lapsed
US
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Injection pump drives
Assignee: Individual
•
Filing: 1953-08-19
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Granted: 1958-10-14
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Expires: 1973-08-19
Abstract
No abstract record available.
Inventors
- 👤 William H Himes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:50
CPC Classifications
F; F02; F02M; F02M39/00; F02M39/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US305635A
Cited
US444341A
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US651422A
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US1918075A
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US1985934A
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US2024486A
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US2323353A
Cited
CH233437A
Cited
FR1059724A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |