Patent US2572808A successfully refreshed from Google Patents.
US2572808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dielectric with n, n'-1-3 dimorpholino isopropanol as scavenger
Assignee: Monsanto Chemicals Ltd
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Filing: 1948-09-18
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Granted: 1951-10-23
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Expires: 1968-09-18
Abstract
No abstract record available.
Inventors
- 👤 Elwood F Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:29
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/20
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
30 words
A HEAT TRANSFER AND DIELECTRIC COMPOSITION CONSISTING ESSENTIALLY OF A HALOGENATED ARYL HYDROCARBON AND AS A SCAVENGER THEREFOR ABOUT 0.05% TO ABOUT 1% BY WEIGHT OF N,N'' -1-3 DIMORPHOLINO ISOPROPANOL.
References Cited (Backward Citations)
US2041594A
Cited
US2453493A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-22 | 1955-04-23 | 1955-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-22 | 1959-04-23 | 1959-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-22 | 1963-04-23 | 1963-10-23 | $7700.00 | Window Closed / Lapsed |