Patent US3787227A successfully refreshed from Google Patents.
US3787227A
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Rust preventative compositions
Assignee: WR Grace and Co Conn
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Filing: 1972-06-29
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Granted: 1974-01-22
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Expires: 1992-06-29
Abstract
Abstract This invention relates to rust preventative compositions comprising an aqueous emulsion of a compound of the general formula: WHEREIN R'' is hydrogen or a lower alkyl containing one to six carbon atoms; R is either CnH2n 1, CnH2n 1 or CnH2n 3; n is an integer from 11 to 23 and x is an integer from 1 to 4.
Inventors
- 👤 N Marans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:14
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; B; B21; B21B; B21B45/00; B21B45/02; B21B45/0239; B21B45/0242; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/145; C10M2201/00; C10M2201/02; C10M2215/00; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/28; C10N; C10N2040/00; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
12 words
The process according to claim 1 wherein the compound is N-oleoyliminodiacetic acid.
Claim 2
Dependent Claim
11 words
The process according to claim 1 wherein thee compound is N-oleoylsarcosine.
Claim 3
Dependent Claim
11 words
The process according to claim 1 wherein the compound is N-cocoylsarcosine.
References Cited (Backward Citations)
US2790779A
Cited
US3655604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |