US2423307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam jet refrigeration apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1945-01-16
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Granted: 1947-07-01
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Expires: 1965-01-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter G Fraser
- 👤 George C Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:00
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/26; B01D3/00; B01D3/06; C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/16; F; F25; F25B; F25B1/00; F25B1/06; Y; Y10; Y10S; Y10S159/00; Y10S159/16; Y10S203/00; Y10S203/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2064609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-30 | 1950-12-30 | 1951-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-30 | 1954-12-30 | 1955-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-30 | 1958-12-30 | 1959-07-01 | $7700.00 | Window Closed / Lapsed |