US3598553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synergistic anti-icing composition
Assignee: Universal Oil Products Co
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Filing: 1968-05-29
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Granted: 1971-08-10
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Expires: 1988-05-29
Abstract
Abstract SYNERGISTIC ANTI-ICING COMPOSITION OF (1) POLYHYDROXY ALCOHOL AND (2) AN N-ALKYLALKYLALKYLENEPOLYAMINE OR N-ALKYLPOLYALKYLENEPOLYAMINE IN WHICH SAID ALKYL CONTAINS AT LEAST ONE ARYL GROUP.
Inventors
- 👤 Robert H Rosenwald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:17
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/223
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |