Patent US3282853A successfully refreshed from Google Patents.
US3282853A
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Azeotropic composition and process for attenuating magnetic ink characters
Assignee: EIDP Inc
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Filing: 1964-03-24
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Granted: 1966-11-01
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Expires: 1984-03-24
Abstract
No abstract record available.
Inventors
- 👤 Edward J Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:26
CPC Classifications
C; C23; C23G; C23G5/00; C23G5/02; C23G5/028; C23G5/02809; C23G5/02812; C23G5/02816; C23G5/02819; C09; C09D; C09D9/00; C09D9/005; C11; C11D; C11D7/00; C11D7/50; C11D7/5036; C11D7/504; C11D7/5059; G; G11; G11B; G11B5/00; G11B5/62; G11B5/68; G11B5/70; G11B5/702; G11B5/84; G11B5/8412
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
AN AZEOTROPIC COMPOSITION CONSISTING OF ABOUT 92.8% BY WEIGHT OF 1,1,2-TRICHLORO-1,2,2-TRIFLUOROETHANE AND ABOUT 7.2% BY WEIGHT OF CHLOROFORM, AND HAVING A BOILING POINT OF 47.57*C. AT 761.9 MM. HG PRESSURE.
Claim 2
Dependent Claim
30 words
AN AZEOTROPIC COMPOSITION CONSISTING OF ABOUT 92.8% BY WEIGHT OF 1,1,2-TRICHLORO-1,2,2-TRIFLUOROETHANE AND ABOUT 7.2% BY WEIGHT OF CHLOROFORM, AND HAVING A BOILING POINT OF 47.57*C. AT 761.9 MM. HG PRESSURE.
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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |