US2531323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration cabinet
Assignee: —
•
Filing: —
•
Granted: 1950-11-21
•
Expires: 1967-11-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:34
CPC Classifications
F; F25; F25D; F25D11/00; F25D11/02; F25D11/022; F25D23/00; F25D23/06; F25D23/061; F25D21/00; F25D21/14; F25D23/02; F25D2321/00; F25D2321/14; F25D2321/146; F25D2400/00; F25D2400/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE18795E
Cited
US721860A
Cited
US1161536A
Cited
US1467246A
Cited
US1394130A
Cited
US1835785A
Cited
US2026838A
Cited
US1950282A
Cited
US2068131A
Cited
US2140810A
Cited
US2238511A
Cited
US2356068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |