US3393530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiant defrost panel for refrigerator
Assignee: Whirlpool Corp
•
Filing: 1966-10-17
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Granted: 1968-07-23
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Expires: 1986-10-17
Abstract
No abstract record available.
Inventors
- 👤 Alan J Koch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:43
CPC Classifications
F; F25; F25D; F25D17/00; F25D17/04; F25D17/06; F25D17/062; F25D17/065; F25D21/00; F25D21/06; F25D21/08; F25D17/042; F25D17/045; F25D2317/00; F25D2317/06; F25D2317/067; F25D2317/068; F25D2317/0683; F25D2400/00; F25D2400/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3126716A
Cited
US3050956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-23 | 1972-01-22 | 1972-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-23 | 1976-01-22 | 1976-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-23 | 1980-01-22 | 1980-07-23 | $7700.00 | Window Closed / Lapsed |