US3789006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solvent compositions
Assignee: Imperial Chemical Industries Ltd
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Filing: 1971-06-28
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Granted: 1974-01-29
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Expires: 1991-06-28
Abstract
Abstract A SOLVENT COMPOSITION WHICH COMPRISES A MIXTURE OF TRICHLOROTRIFLUOROETHANE, ISOPROPANOL AND NITROMETHANE, WHICH MIXTURE FORMS AN AZEOTROPE.
Inventors
- 👤 I Mcmillan
- 👤 J Prest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:07
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/50; C11D7/5036; C11D7/5068; C11D7/5095
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |