US2885855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot-gas reciprocating machine of the displacer-piston type
Assignee: US Philips Corp
•
Filing: 1954-11-02
•
Granted: 1959-05-12
•
Expires: 1974-11-02
Abstract
No abstract record available.
Inventors
- 👤 Meyer Roelf Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:30
CPC Classifications
F; F02; F02G; F02G1/00; F02G1/04; F02G1/043; F02G2243/00; F02G2243/02; F02G2270/00; F02G2270/42; F02G2270/425
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US668626A
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US1073065A
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US1240862A
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US1701439A
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US2083808A
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US2596051A
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US2432725A
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US2590662A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |