Patent US2947611A successfully refreshed from Google Patents.
US2947611A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diamond synthesis
Assignee: General Electric Co
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Filing: 1958-01-06
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Granted: 1960-08-02
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Expires: 1978-01-06
Abstract
No abstract record available.
Inventors
- 👤 Francis P Bundy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:54
CPC Classifications
B; B01; B01J; B01J3/00; B01J3/06; B01J3/065; B01J3/067; B01J2203/00; B01J2203/06; B01J2203/065; B01J2203/0655
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
THE METHOD OF SYNTHETICALLY MAKING DIAMONDS WHICH COMPRISES (1) COMBINING A CARBONACEOUS MATERIAL WITH PLATINUM AS THE CATALYST, (2) SUBJECTING THE AFORESAID CARBONACEOUS MATERIAL AND CATALYST IN THE DIAMOND FORMING REGION TO A PRESSURE OF AT LEAST ABOUT 90,000 ATMOSPHERES AT A TEMPERATURE FROM ABOUT 2050*C. TO 2500*C., AND (3) ISOLATING THE FORMED DIAMOND.
Claim 2
Independent Claim
54 words
THE METHOD OF SYNTHETICALLY MAKING DIAMONDS WHICH COMPRISES (1) COMBINING A CARBONACEOUS MATERIAL WITH PLATINUM AS THE CATALYST, (2) SUBJECTING THE AFORESAID CARBONACEOUS MATERIAL AND CATALYST IN THE DIAMOND FORMING REGION TO A PRESSURE OF AT LEAST ABOUT 90,000 ATMOSPHERES AT A TEMPERATURE FROM ABOUT 2050*C. TO 2500*C., AND (3) ISOLATING THE FORMED DIAMOND.
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) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |