US2812264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coatings for simplifying frost removal from refrigerated surfaces
Assignee: Whirlpool Corp
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Filing: 1952-11-06
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Granted: 1957-11-05
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Expires: 1972-11-06
Abstract
No abstract record available.
Inventors
- 👤 Richard H Goms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:21
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/28
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
30 words
A COMPOSITION FOR REDUCING THE ADHESION OF FROST ON REFRIGERATED SURFACES COMPRISING A VEGETABLE OIL CONTAINING TWO TO TEN PERCENT OF ALUMINUM STEARATE AND FIVE TO FIFTEEN PERCENT PROPYLENE GLYCOL.
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) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |