Patent US3567638A successfully refreshed from Google Patents.
US3567638A
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Novel phosphorus-containing adducts in oil compositions containing the same
Assignee: Mobil Oil AS
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Filing: 1968-09-26
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Granted: 1971-03-02
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Expires: 1988-09-26
Abstract
Abstract THE REACTION BETWEEN DIOGRANOPHOSPHINODITHIOIC ACIDS AND VINYL CARBOXYLATES PRODUCES NOVEL ADDUCTS HAVING IMPROVED HIGH TEMPERATURE STABILITY WHILE IMPARTIN OXIDATION INHIBITION TO ORGANIC BASE MEDIA.
Inventors
- 👤 Milton Braid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:22
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/30; C07F9/32; C07F9/3258; C07F9/3264; C10M2205/00; C10M2205/02; C10M2205/028; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2209/00; C10M2209/02; C10M2209/10; C10M2223/00; C10M2223/06; C10M2223/065; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |