Patent US4985168A successfully refreshed from Google Patents.
US4985168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Working fluids
Assignee: Daikin Industries Ltd
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Filing: 1990-04-27
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Granted: 1991-01-15
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Expires: 2010-04-27
Abstract
Abstract The present invention provides: (1) a working fluid comprising at least one of 3-chloro-1,1,1,2,2-pentafluoropropane and 1-chloro-1,1,3,3,3-pentafluoropropane, (2) a working fluid comprising (1) at least one of 3-chloro-1,1,1,2,2-pentafluoropropane and 1-chloro-1,1,3,3,3-pentafluoropropane and (2) at least one of 2,2-dichloro-1,1,1-trifluoroethyane, 1,2-dichloro-1,1,2-trifluoroethane and 1,1-dichloro-1,2,2-trifluoroethane, and (3) a working fluid comprising (1) at least one of 3-chloro-1,1,1,2,2-pentafluoropropane and 1-chloro-1,1,3,3,3-pentafluoropropane and (2) 1,1-dichloro-1-fluoroethane.
Inventors
- 👤 Yukio Ohmure
- 👤 Hiroshi Kashiwagi
- 👤 Katsuki Fujiwara
- 👤 Tatsumi Tsuchiya
- 👤 Hirokazu Aoyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:12
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/02; C09K5/04; C09K5/041; C09K5/044
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
7 words
A working fluid comprising 3-chloro-1,1,1,2,2-pentafluoropropane and 1-chloro-1,1,3,3,3-pentafluoropropane.
Claim 2
Dependent Claim
7 words
A working fluid comprising 3-chloro-1,1,1,2,2-pentafluoropropane and 1-chloro-1,1,3,3,3-pentafluoropropane.
Claim 3
Dependent Claim
22 words
A working fluid comprising (1) at least one of 3-chloro-1,1,1,2,2-pentafluoropropane and 1-chloro-1,1,3,3,3-pentafluoropropane and (2) at least one of 2,2-dichloro-1,1,1-trifluoroethane, 1,2-dichloro-1,1,2-trifluoroethane and 1,1-dichloro-1,2,2-trifluoroethane.
Claim 4
Dependent Claim
22 words
A working fluid comprising (1) at least one of 3-chloro-1,1,1,2,2-pentafluoropropane and 1-chloro-1,1,3,3,3-pentafluoropropane and (2) at least one of 2,2-dichloro-1,1,1-trifluoroethane, 1,2-dichloro-1,1,2-trifluoroethane and 1,1-dichloro-1,2,2-trifluoroethane.
Claim 5
Dependent Claim
38 words
A working fluid according to claim 2 which comprises about 99 to about 20% by weight of at least one of components (1) and about 1 to about 80% by weight of at least one of components (2).
Claim 6
Dependent Claim
34 words
A working fluid according to claim 3 which comprises about 99 to about 60% by weight of at least one of components (1) and about 1 to about 40% by weight of component (2).
Claim 7
Dependent Claim
15 words
A working fluid comprising (1) at least one of 3-chloro-1,1,1,2,2-pentafluoropropane and 1-chloro-1,1,3,3,3-pentafluoropropane and (2) 1,1-dichloro-1-fluoroethane.
Claim 8
Dependent Claim
15 words
A working fluid comprising (1) at least one of 3-chloro-1,1,1,2,2-pentafluoropropane and 1-chloro-1,1,3,3,3-pentafluoropropane and (2) 1,1-dichloro-1-fluoroethane.
Claim 9
Dependent Claim
34 words
A working fluid according to claim 5 which comprises about 99 to about 35% by weight of at least one of components (1) and about 1 to about 65% by weight of component (2).
Claim 10
Dependent Claim
32 words
A working fluid according to claim 6 which comprises about 99 to 45% by weight of at least one of components (1) and about 1 to 55% by weight of component (2).
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) | 1994-01-14 | 1994-07-16 | 1995-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-14 | 1998-07-16 | 1999-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-14 | 2002-07-16 | 2003-01-15 | $7700.00 | Window Closed / Lapsed |