US2552084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Working fluid for a compression refrigeration system
Assignee: Motors Liquidation Co
•
Filing: 1946-09-21
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Granted: 1951-05-08
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Expires: 1966-09-21
Abstract
No abstract record available.
Inventors
- 👤 Alfred E Bishop
- 👤 Stanley V Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:41
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/12; C09; C09K; C09K5/00; C09K5/02; C09K5/04; C09K5/041; C09K5/044; C10; C10M; C10M171/00; C10M171/008
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) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |