US3411312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigerator with convertible compartment
Assignee: Whirlpool Corp
•
Filing: 1967-09-01
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Granted: 1968-11-19
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Expires: 1987-09-01
Abstract
No abstract record available.
Inventors
- 👤 Sigl John
- 👤 Louis H Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:46
CPC Classifications
F; F25; F25D; F25D17/00; F25D17/04; F25D17/06; F25D17/062; F25D17/065; F25D17/042; F25D17/045; F25D2400/00; F25D2400/04; F25D2400/06; F25D2400/16
Claims Analysis
Total Claims: 0
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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) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |