US2679323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loading and unloading mechanism for quick freeze apparatus
Assignee: Freezing Equipment Sales Inc
•
Filing: 1949-10-25
•
Granted: 1954-05-25
•
Expires: 1969-10-25
Abstract
No abstract record available.
Inventors
- 👤 Patterson Velt Cowan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:17
CPC Classifications
F; F25; F25D; F25D25/00; F25D25/04; A; A23; A23B; A23B2/00; A23B2/80; A23B2/803; A23B2/8033; A23B2/805; A23B2/8055; F25D2400/00; F25D2400/30
Claims Analysis
Total Claims: 0
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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) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |