US2493488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two temperature refrigerator, including a humidity control system
Assignee: Liquid Carbonic Corp
•
Filing: 1945-03-21
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Granted: 1950-01-03
•
Expires: 1965-03-21
Abstract
No abstract record available.
Inventors
- 👤 Wayne D Jordan
- 👤 Paul D Van Vliet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:13
CPC Classifications
F; F25; F25D; F25D23/00; F25D23/003; F25B; F25B1/00; F25D11/00; F25D11/02; F25D11/022; F25D17/00; F25D17/04; F25D17/042; F25B2400/00; F25B2400/06; F25C; F25C2400/00; F25C2400/10; F25D2317/00; F25D2317/04; F25D2317/041; F25D2317/0413; F25D2317/04131; F25D2400/00; F25D2400/04; F25D2400/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2215372A
Cited
US2102354A
Cited
US2196527A
Cited
US2133958A
Cited
US2242407A
Cited
US2319522A
Cited
US2292015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |