US4645620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intercalation compounds of graphite
Assignee: Individual
•
Filing: 1983-12-22
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Granted: 1987-02-24
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Expires: 2003-12-22
Abstract
Abstract The invention provides a graphite fluorine intercalation product of the formula C x F wherein x≧5.5, said product having a basal plane conductivity greater than 10 5 cm -1 Ω -1 . The invention also provides a process for producing the above product comprising exposing highly oriented pyrolitic graphite to a fluorine atmosphere in a sealed system under pressure.
Inventors
- 👤 Israel Palchan
- 👤 Dan Davidov
- 👤 Henry Selig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:56
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; C; C01; C01B; C01B32/00; C01B32/20; C01B32/21; C01B32/22
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
29 words
A graphite fluorine intercalation product of the formula C x F wherein x≧5.5, said product having a basal plane conductivity greater than 10 5 cm -1 Ω -1 .
Claim 2
Dependent Claim
29 words
A graphite fluorine intercalation product of the formula C x F wherein x≧5.5, said product having a basal plane conductivity greater than 10 5 cm -1 Ω -1 .
Claim 3
Dependent Claim
15 words
A graphite fluorine intercalation product according to claim 1, wherein x is less than 100.
Claim 4
Dependent Claim
11 words
A graphite fluorine intercalation product according to claim 1, wherein 6<x<50.
Claim 5
Dependent Claim
21 words
A graphite fluorine intercalation product according to claim 1, wherein said product has a specific conductivity greater than 6.6×10 4 .
References Cited (Backward Citations)
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US4036786A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-23 | 1990-08-25 | 1991-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-23 | 1994-08-25 | 1995-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-23 | 1998-08-25 | 1999-02-24 | $7700.00 | Window Closed / Lapsed |