US3030187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthesis of diamond
Assignee: Union Carbide Corp
•
Filing: 1958-07-23
•
Granted: 1962-04-17
•
Expires: 1978-07-23
Abstract
No abstract record available.
Inventors
- 👤 William G Eversole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:33
CPC Classifications
B; B01; B01J; B01J3/00; B01J3/06; B01J3/062; B01J2203/00; B01J2203/06; B01J2203/0605; B01J2203/061; B01J2203/062; B01J2203/065; B01J2203/0655; B01J2203/0675; B01J2203/068
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A SOLID-GAS CONTACTING PROCESS FOR GROWING DIAMOND ON DIAMOND SEED CRYSTAL WHICH COMPRISES PROVIDING DIAMOND SEED CRYSTAL; CONTACTING SAID DIAMOND SEED CRYSTAL SOLELY WITH A GAS SELECTED FROM THE GROUP CONSISTING OF CARBON MONOXIDE AND MIXTURES OF CARBON DIOXIDE AND CARBON MONOXIDE AT TEMPERATURES BETWEEN ABOUT 600* C. AND ABOUT 1600* C. AND PRESSURES ABOVE ABOUT 20 ATMOSPHERES.
Claim 2
Dependent Claim
58 words
A SOLID-GAS CONTACTING PROCESS FOR GROWING DIAMOND ON DIAMOND SEED CRYSTAL WHICH COMPRISES PROVIDING DIAMOND SEED CRYSTAL; CONTACTING SAID DIAMOND SEED CRYSTAL SOLELY WITH A GAS SELECTED FROM THE GROUP CONSISTING OF CARBON MONOXIDE AND MIXTURES OF CARBON DIOXIDE AND CARBON MONOXIDE AT TEMPERATURES BETWEEN ABOUT 600* C. AND ABOUT 1600* C. AND PRESSURES ABOVE ABOUT 20 ATMOSPHERES.
References Cited (Backward Citations)
GB377239A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |