US3517092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing high-density isotropic graphite structures
Assignee: United States Atomic Energy Commission
•
Filing: 1968-04-15
•
Granted: 1970-06-23
•
Expires: 1988-04-15
Abstract
No abstract record available.
Inventors
- 👤 George R Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:23
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/52; C04B35/528; C04B35/532; B; B01; B01J; B01J2/00; B01J2/28; C01; C01B; C01B32/00; C04B35/521
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2761848A
Cited
US3001237A
Cited
US3011960A
Cited
US2997744A
Cited
US3197527A
Cited
US3280231A
Cited
US3245880A
Cited
US3321375A
Cited
US3284372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |