US3574580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing sintered diamond compact and products
Assignee: United States Atomic Energy Commission
•
Filing: 1968-11-08
•
Granted: 1971-04-13
•
Expires: 1988-11-08
Abstract
Abstract PROCESS INCLUDING PRELIMINARY CLEANSING AND ESSENTIAL PRECONDITIONING TREATMENT OF FINELY DIVIDED DIAMOND PARTICLES FOLLOWED BY COMPACTION OF THE PRECONDITIONED PARTICLES AT HIGH TEMPERATURES AND PRESSURES IN THE DIAMOND STABLE REGION TO PRODUCE DENSE SELF-BONDED SINTERED DIAMOND COMPACT. INCORPORATION OF FORON, SILICON OR BERYLLIUM AS SINTERING AID AGENTS WITH THE PRECONDITIONED PARTICLES STILL FURTHER PROMOTES SINTERING AND BONDING OF THE COMPACT.
Inventors
- 👤 Harold D Stromberg
- 👤 Douglas R Stephens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:19
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/515; C04B35/52; B; B01; B01J; B01J3/00; B01J3/06; B01J3/062; B01J3/065; B30; B30B; B30B11/00; B30B11/004; C04B35/622; C04B35/64; C04B35/645; C09; C09K; C09K3/00; C09K3/14; C09K3/1409; C09K3/1418; B01J2203/00; B01J2203/06; B01J2203/0605; B01J2203/062; B01J2203/065; B01J2203/0655; B01J2203/0675; B01J2203/0685; C04B2235/00; C04B2235/02; C04B2235/30; C04B2235/40; C04B2235/42; C04B2235/421; C04B2235/422; C04B2235/427; C04B2235/428; C04B2235/50; C04B2235/54; C04B2235/5418; C04B2235/5436; C04B2235/5445; C04B2235/5463; C04B2235/5472; C04B2235/65; C04B2235/656; C04B2235/6567; C04B2235/658; C04B2235/6581; C04B2235/70; C04B2235/96
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |