US2493355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Free-piston compressor
Assignee: MOORE Inc
•
Filing: 1945-05-29
•
Granted: 1950-01-03
•
Expires: 1965-05-29
Abstract
No abstract record available.
Inventors
- 👤 Mercier Ernest
- 👤 Ehlinger Marcel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:37
CPC Classifications
F; F02; F02B; F02B71/00; F02B71/04; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18992
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US393037A
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US588296A
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US788071A
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US1869363A
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US1835834A
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US2075133A
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FR770023A
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US2115921A
Cited
US2097431A
Cited
DE648729C
Cited
US2318782A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |