US2964912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerating apparatus including supplemental refrigerating means
Assignee: Whirlpool Corp
•
Filing: 1958-04-07
•
Granted: 1960-12-20
•
Expires: 1978-04-07
Abstract
No abstract record available.
Inventors
- 👤 Jr John Roeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:08
CPC Classifications
F; F25; F25B; F25B21/00; F25B21/02; F25D; F25D11/00; F25D11/02; F25D23/00; F25D23/02; F25D2400/00; F25D2400/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1818437A
Cited
US2401460A
Cited
US2721454A
Cited
US2728199A
Cited
US2844638A
Cited
US2872788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |