US3492197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel compressed cohered graphite structures and method of preparing same
Assignee: Dow Chemical Co
•
Filing: 1965-03-22
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Granted: 1970-01-27
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Expires: 1985-03-22
Abstract
No abstract record available.
Inventors
- 👤 Franciszek Olstowski
- 👤 Wallace T Mcmichael
- 👤 John D Watson Sr
- 👤 Leonard M Vaught
- 👤 Thomas E Bonorden
- 👤 Thomas G Hagemeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:24
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/10; F16J15/12; F16J15/121; C; C01; C01B; C01B32/00; C04; C04B; C04B35/00; C04B35/515; C04B35/52; C04B35/536; Y; Y10; Y10T; Y10T428/00; Y10T428/30; Y10T428/31504; Y10T428/31507; Y10T428/3154; Y10T428/31544; Y10T428/31815; Y10T428/31971
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1137373A
Cited
US2997744A
Cited
US3003975A
Cited
US3275488A
Cited
US3187502A
Cited
US3323869A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |