US2664049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-operated pump with pneumatic shock absorber
Assignee: DRESSER EQUIPMENT Co
•
Filing: 1948-02-16
•
Granted: 1953-12-29
•
Expires: 1968-02-16
Abstract
No abstract record available.
Inventors
- 👤 Clarence J Coberly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:45
CPC Classifications
F; F04; F04B; F04B11/00; F04B11/0008; F04B11/0016
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB189617403A
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US756140A
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US1235112A
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US1292778A
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US2287909A
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US2368346A
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US2290337A
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US2278688A
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US2341501A
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US2345475A
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US2352187A
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US2448118A
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US2446358A
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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) | 1956-12-28 | 1957-06-29 | 1957-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-28 | 1961-06-29 | 1961-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-28 | 1965-06-29 | 1965-12-29 | $7700.00 | Window Closed / Lapsed |