US3553973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous freezer
Assignee: JACK K MORAN
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Filing: 1966-06-23
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Granted: 1971-01-12
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Expires: 1986-06-23
Abstract
Abstract CRYOGENIC FEEZING OF ARTICLES IS CARRIED OUT IN TUNNEL STRUCTURE IN WHICH THE OBJECTS ARE SPRAYED WITH CROYOGENIC LIQUID AT A SELECTED LOCATION AND VOLATILIZED REFRIGERANIT IS REMOVED FROM AND RETURNED TO THE PATH OF TRAVEL AT SELECTED LOCATIONS, THE SPEED OF MOVEMENT OF THE OBJECTS AND THE HALDLING OF THE VOLATILIZED REFRIGERANT BEING DETERMINED IN ACCORDANCE WITH TEMPERATURE REQUIREMENTS.
Inventors
- 👤 Jack K Moran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:01
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/80; A23B2/85; A23B2/88; A23B2/803; F; F25; F25D; F25D3/00; F25D3/10; F25D3/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |