Patent US2852470A successfully refreshed from Google Patents.
US2852470A
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US
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Refrigeration composition
Assignee: Motors Liquidation Co
•
Filing: 1954-10-15
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Granted: 1958-09-16
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Expires: 1974-10-15
Abstract
No abstract record available.
Inventors
- 👤 Albert L Henne
- 👤 Victor A Williamitis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:41
CPC Classifications
C; C10; C10M; C10M171/00; C10M171/008; C09; C09K; C09K5/00; C09K5/02; C09K5/04; C09K5/041; C09K5/044
Claims Analysis
Total Claims: 0
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US2324739A
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US2455873A
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US2542785A
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US2548493A
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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) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |