US2767558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air blast refrigerated cabinet
Assignee: Whirlpool Corp
•
Filing: 1955-03-30
•
Granted: 1956-10-23
•
Expires: 1975-03-30
Abstract
No abstract record available.
Inventors
- 👤 Ralph E Wallenbrock
- 👤 John S Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:23
CPC Classifications
F; F25; F25D; F25D25/00; F25D25/02; F25D25/024; F25B; F25B31/00; F25B31/006; F25D17/00; F25D17/04; F25D17/06; F25D17/062; F25D21/00; F25D21/14; F25D2317/00; F25D2317/06; F25D2317/062; F25D2317/065; F25D2317/0651; F25D2317/068; F25D2317/0683; F25D2321/00; F25D2321/14; F25D2321/146; F25D2700/00; F25D2700/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |