US2856756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cold-gas refrigerating machine and method
Assignee: US Philips Corp
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Filing: 1953-06-26
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Granted: 1958-10-21
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Expires: 1973-06-26
Abstract
No abstract record available.
Inventors
- 👤 Kohler Jacob Willem Laurens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:52
CPC Classifications
F; F25; F25B; F25B9/00; F25B9/14; F25J; F25J3/00; F25J3/02; F25J3/04; F25J3/04151; F25J3/04187; F25J3/04193; F25J3/042; F25J3/04248; F25J3/04278; F25J3/044; F25J3/04642; F25J3/04648; F25J3/04654; F25J3/0466; F25J2200/00; F25J2200/50; F25J2230/00; F25J2230/08; F25J2270/00; F25J2270/12; F25J2270/42; F25J2270/50; F25J2270/90; F25J2270/908; Y; Y10; Y10S; Y10S62/00; Y10S62/902; Y10S62/905; Y10S62/907
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-20 | 1962-04-21 | 1962-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-20 | 1966-04-21 | 1966-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-20 | 1970-04-21 | 1970-10-21 | $7700.00 | Window Closed / Lapsed |