US3043783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal deactivator composition of low freezing properties
Assignee: Universal Oil Products Co
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Filing: 1960-03-31
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Granted: 1962-07-10
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Expires: 1980-03-31
Abstract
No abstract record available.
Inventors
- 👤 Julian P Hatcher
- 👤 George E Atherton
- 👤 William L Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:46
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/228; C10L1/2283
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A SOLUTION OF FROM ABOUT 30% TO ABOUT 80% BY WEIGHT OF DISALICYLALPROPYLENEDIAMINE IN FROM ABOUT 20% TO ABOUT 70% BY WEIGHT OF A SOLVENT MIXTURE OF FROM ABOUT 5% TO ABOUT 25% BY WEIGHT OF METHANOL AND FROM ABOUT 75% TO ABOUT 95% BY WEIGHT OF TOLUENE.
Claim 2
Dependent Claim
48 words
A SOLUTION OF FROM ABOUT 30% TO ABOUT 80% BY WEIGHT OF DISALICYLALPROPYLENEDIAMINE IN FROM ABOUT 20% TO ABOUT 70% BY WEIGHT OF A SOLVENT MIXTURE OF FROM ABOUT 5% TO ABOUT 25% BY WEIGHT OF METHANOL AND FROM ABOUT 75% TO ABOUT 95% BY WEIGHT OF TOLUENE.
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) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |