US3522712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snow free forced air refrigerator
Assignee: Whirlpool Corp
•
Filing: 1968-07-05
•
Granted: 1970-08-04
•
Expires: 1988-07-05
Abstract
No abstract record available.
Inventors
- 👤 Louis H Carl
- 👤 Ambrose J Braunecker
- 👤 Ben W Brightman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:49
CPC Classifications
F; F25; F25D; F25D17/00; F25D17/04; F25D17/06; F25D17/062; F25D17/065; F25D17/042; F25D17/045; F25D2400/00; F25D2400/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2231797A
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US2736176A
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US3288370A
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US3370439A
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US3403533A
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US3359751A
Cited
US3382683A
Cited
US3421338A
Cited
US3375677A
Cited
US3389575A
Cited
US3411312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |