US2538780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerating device for package goods
Assignee: Individual
•
Filing: 1945-02-22
•
Granted: 1951-01-23
•
Expires: 1965-02-22
Abstract
No abstract record available.
Inventors
- 👤 Frederick E Hazard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:44
CPC Classifications
F; F25; F25B; F25B25/00; F25B25/005; F25D; F25D23/00; F25D23/02; F25D25/00; F25D25/02; F25D2331/00; F25D2331/80; F25D2331/803
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1695956A
Cited
US2274065A
Cited
US1734366A
Cited
US2261681A
Cited
US2241053A
Cited
US2321642A
Cited
US2299347A
Cited
US2425870A
Cited
US2381598A
Cited
US2408460A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-22 | 1954-07-24 | 1955-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-22 | 1958-07-24 | 1959-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-22 | 1962-07-24 | 1963-01-23 | $7700.00 | Window Closed / Lapsed |