US3404061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible graphite material of expanded particles compressed together
Assignee: Union Carbide Corp
•
Filing: 1963-04-15
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Granted: 1968-10-01
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Expires: 1983-04-15
Abstract
No abstract record available.
Inventors
- 👤 James H Shane
- 👤 Robert J Russell
- 👤 Raymond A Bochman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:25
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/52; C04B35/522; C01; C01B; C01B32/00; C04B20/00; C04B20/02; C04B20/04; C04B20/06; C04B35/536; C04B38/00; C04B38/08; D; D01; D01F; D01F11/00; D01F11/10; D01F11/12; D01F11/121; D01F11/122; D01F11/125; D01F11/16; D01F9/00; D01F9/08; D01F9/12; D04; D04H; D04H1/00; D04H1/04; F; F16; F16L; F16L59/00; F16L59/02; F16L59/029; F28; F28F; F28F21/00; F28F21/02; Y; Y10; Y10S; Y10S277/00; Y10S277/935; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/24999; Y10T428/25; Y10T428/30
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
49 words
A GRAPHITE MATERIAL COMPRISING A MASS OF EXPANDED GRAPHITE PARTICLES COMPRESSED TOGETHER IN THE ABSENCE OF A BINDER, SAID EXPANDED GRAPHITE PARTICLES PRIOR TO COMPRESSION HAVING A C DIRECTION DIMENSION WHICH IS AT LEAST 80 TIMES THAT OF THE GRAPHITE PARTICLES FROM WHICH SAID EXPANDED GRAPHITE PARTICLES ARE FORMED.
Claim 2
Dependent Claim
49 words
A GRAPHITE MATERIAL COMPRISING A MASS OF EXPANDED GRAPHITE PARTICLES COMPRESSED TOGETHER IN THE ABSENCE OF A BINDER, SAID EXPANDED GRAPHITE PARTICLES PRIOR TO COMPRESSION HAVING A C DIRECTION DIMENSION WHICH IS AT LEAST 80 TIMES THAT OF THE GRAPHITE PARTICLES FROM WHICH SAID EXPANDED GRAPHITE PARTICLES ARE FORMED.
Claim 3
Dependent Claim
14 words
A GRAPHITE MATERIAL ACCORDING TO CLAIM 1 WHEREIN AT LEAST ONE SURFACE IS EMBOSSED.
References Cited (Backward Citations)
US1137373A
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US1191383A
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US1285465A
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US3160550A
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US3174895A
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US3107152A
Cited
US3072558A
Cited
US3138434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |