Patent US3400544A successfully refreshed from Google Patents.
US3400544A
Expired / Lapsed
US
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Fluid cooling employing plural cold producing machines
Assignee: US Philips Corp
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Filing: 1967-02-28
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Granted: 1968-09-10
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Expires: 1987-02-28
Abstract
No abstract record available.
Inventors
- 👤 Prast Gijsbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:36
CPC Classifications
F; F25; F25J; F25J1/00; F25J1/02; F25J1/0243; F25J1/0257; F25J1/0275; F25J1/0276; F25B; F25B9/00; F25B9/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2750765A
Cited
US2820352A
Cited
US3101597A
Cited
US3128605A
Cited
US3221509A
Cited
US3327486A
Cited
US3310954A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |