US2604451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mineral oil compositions
Assignee: Gulf Research and Development Co
•
Filing: 1948-09-16
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Granted: 1952-07-22
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Expires: 1968-09-16
Abstract
No abstract record available.
Inventors
- 👤 Albert G Rocchini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:54
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/08; C10M2215/082; C10M2215/086; C10M2215/12; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2219/108; C10M2223/00; C10M2223/08; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/135; C10N2040/20; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
74 words
AN IMPROVED MINERAL OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF A MINERAL OIL AND A MINOR AMOUNT OF THE AMIDE WHICH IS FORMED BY REACTING ABOUT EQUIMOLECULAR AMOUNTS OF A BASIC ORGANIC AMINE HAVING AT LEAST ONE HYDROGEN ATOM ATTACHED TO THE AMINO NITROGEN ATOM AND A MALONIC ACID HAVING AN ALKYL SUBSTITUENT OF AT LEAST SIX CARBON ATOMS, THE AMOUNT OF SAID AMIDE BEING SUFFICIENT TO IMPART CORROSION INHIBITING PROPERTIES TO SAID COMPOSITION.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |