Patent US2874552A successfully refreshed from Google Patents.
US2874552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Freezing device
Assignee: Motors Liquidation Co
•
Filing: 1957-11-12
•
Granted: 1959-02-24
•
Expires: 1977-11-12
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Frei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:33
CPC Classifications
F; F25; F25C; F25C1/00; F25C1/04; F25C5/00; F25C5/02; F25C5/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1067356A
Cited
US2065318A
Cited
US2275522A
Cited
US2241313A
Cited
US2629987A
Cited
US2677968A
Cited
US2808708A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |