US3415745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of flocculating a water-borne oil slick
Assignee: Sinclair Research Inc
•
Filing: 1966-11-07
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Granted: 1968-12-10
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Expires: 1986-11-07
Abstract
No abstract record available.
Inventors
- 👤 Henry V Isaacson
- 👤 David W Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:04
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/681; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A METHOD OF FLOCCULATING A WATER-BORNE OIL SLICK WHICH COMPRISES APPLYING TO SAID OIL SLICK A QUATERNARY AMMONIUM SALT OF A TERITARY AMINE-CONTAINING, IMIDIC REACTION PRODUCT OF (A) A VINYL MONOMER-MALEIC ANHYDRIDE POLYMER HAVING AN AVERAGE MOLECULAR WEIGHT OF ABOUT 600 TO 100,000 AND A MOLAR RATIO OF VINYL MONOMER TO MALEIC ANHYDRIDE OF ABOUT 1:1 TO 4:1, SAID VINYL MONOMER BEING A MONOVINYL COMPOUND OF 2 TO ABOUT 12 CARBON ATOMS AND (B) A POLYAMINE CORRESPONDING TO THE FORMULA:
Claim 2
Independent Claim
80 words
A METHOD OF FLOCCULATING A WATER-BORNE OIL SLICK WHICH COMPRISES APPLYING TO SAID OIL SLICK A QUATERNARY AMMONIUM SALT OF A TERITARY AMINE-CONTAINING, IMIDIC REACTION PRODUCT OF (A) A VINYL MONOMER-MALEIC ANHYDRIDE POLYMER HAVING AN AVERAGE MOLECULAR WEIGHT OF ABOUT 600 TO 100,000 AND A MOLAR RATIO OF VINYL MONOMER TO MALEIC ANHYDRIDE OF ABOUT 1:1 TO 4:1, SAID VINYL MONOMER BEING A MONOVINYL COMPOUND OF 2 TO ABOUT 12 CARBON ATOMS AND (B) A POLYAMINE CORRESPONDING TO THE FORMULA:
References Cited (Backward Citations)
US3157595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |