US3083080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for production of etched diamond
Assignee: General Electric Co
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Filing: 1960-04-21
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Granted: 1963-03-26
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Expires: 1980-04-21
Abstract
No abstract record available.
Inventors
- 👤 Harold P Bovenkerk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:37
CPC Classifications
B; B01; B01J; B01J3/00; B01J3/06; B01J3/062; B01J2203/00; B01J2203/06; B01J2203/0605; B01J2203/0625; B01J2203/065; B01J2203/0655; B01J2203/0675; B01J2203/068
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN A DIAMONF GROWING PROCESS WHICH INCLUDES SUBJECTING A CARBONACEOUS MATERIAL-CATALYST COMBINATION TO PRESSURES AND TEMPERATURES IN THE DIAMOND GGROWTH REGION FOR THE PARTICULR CATALYST ABOVE THE GRAPHITE TO DIAMOND EQUILIBRIUM LINE ON THE PHASE DIAGRAM OF CARBON TO CAUSE DIAMOND CRYSTALS TO GROW FROM SAID CARBONACEOUS MATERIAL, A METHOD OF ETCHING SAID DIAMOND CRYSTALS WHICH COMPRISES, GROWING DIAMOND FROM A CARBONACEOUS MATERIAL CATALYST COMBINATION IN SAID DIAMOND GROWTH REGION, CHANGING THE PRESSURE AND TEMPERATURE CONDITIONS TO BELOW THE GRAPHITE TO DIAMOND EQUILIBRIUM LINE ON THE PHASE DIAGRAM OF CARBON WITH A TEMPERATURE AT LEAST AT THE MELTING POINT OF SAID CATALYST, DISSOLVING PORTIONS OF SAID CRYSTAL IN SAID CATALYST, AND REDUCING THE TEMPERATURE AND PRESSURE AND RECOVERING ETCHED DIAMOND.
Claim 2
Dependent Claim
120 words
IN A DIAMONF GROWING PROCESS WHICH INCLUDES SUBJECTING A CARBONACEOUS MATERIAL-CATALYST COMBINATION TO PRESSURES AND TEMPERATURES IN THE DIAMOND GGROWTH REGION FOR THE PARTICULR CATALYST ABOVE THE GRAPHITE TO DIAMOND EQUILIBRIUM LINE ON THE PHASE DIAGRAM OF CARBON TO CAUSE DIAMOND CRYSTALS TO GROW FROM SAID CARBONACEOUS MATERIAL, A METHOD OF ETCHING SAID DIAMOND CRYSTALS WHICH COMPRISES, GROWING DIAMOND FROM A CARBONACEOUS MATERIAL CATALYST COMBINATION IN SAID DIAMOND GROWTH REGION, CHANGING THE PRESSURE AND TEMPERATURE CONDITIONS TO BELOW THE GRAPHITE TO DIAMOND EQUILIBRIUM LINE ON THE PHASE DIAGRAM OF CARBON WITH A TEMPERATURE AT LEAST AT THE MELTING POINT OF SAID CATALYST, DISSOLVING PORTIONS OF SAID CRYSTAL IN SAID CATALYST, AND REDUCING THE TEMPERATURE AND PRESSURE AND RECOVERING ETCHED DIAMOND.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |