US2319600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerator structure
Assignee: Servel Inc
•
Filing: 1940-05-16
•
Granted: 1943-05-18
•
Expires: 1960-05-16
Abstract
No abstract record available.
Inventors
- 👤 Dudley E Heath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:34
CPC Classifications
F; F25; F25D; F25D23/00; F25D23/02; F25D23/028; E; E05; E05Y; E05Y2900/00; E05Y2900/30; E05Y2900/31; F25D2323/00; F25D2323/02; F25D2323/024
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) | 1946-05-17 | 1946-11-16 | 1947-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-05-17 | 1950-11-16 | 1951-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-05-17 | 1954-11-16 | 1955-05-18 | $7700.00 | Window Closed / Lapsed |