US3124422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthesis of diamonds
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
•
Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:28
CPC Classifications
B; B01; B01J; B01J3/00; B01J3/06; B01J3/062; B01J2203/00; B01J2203/06; B01J2203/0605; B01J2203/061; B01J2203/0625; B01J2203/065; B01J2203/0655; B01J2203/0675; B01J2203/068; Y; Y10; Y10S; Y10S425/00; Y10S425/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
IN A PROCESS FOR SYNTHESIZING DIAMONDS BY FORMING A SATURATED SOLUTION OF CARBON IN A SOLVENT AND SUBJECTING THE SATURATED SOLUTION SIMULTANEOUSLY TO HIGH PRESSURE AND TEMPERATURE TO BRING THE SOLUTION INTO THAT ZONE OF THE DIAMOND-GRAPHITE EQUILIBRIUM DIAGRAM IN WHICH DIAMOND IS THE STABLE PHASE OF CARBON, THEREBY CAUSING CARBON TO PRECIPITATE OUT OF THE SOLUTION IN THE FORM OF DIAMOND; THE STEPS OF SUBJECTING A MIXTURE OF CARBON AND SOLVENT TO PRESSURE AND TEMPERATURE TO MELT THE SOLVENT WHILE THE MIXTURE IS IN THE ZONE OF THE EQUILIBRIUM DIAGRAM IN WHICH GRAPHITE IS THE STABLE PHASE, INCREASING THE TEMPERATURE AND PRESSURE TO BRING THE SOLUTION INTO THE DIAMOND ZONE; MAINTAINING BOTH TEMPERATURE AND PRESSURE CONSTANT AT THEIR REQUIRED LEVEL FOR A PERIOD OF TIME, THEN DECREASING THE TEMPERATURE; AND FINALLY REDUCING THE PRESSURE TO ATMOSPHERIC.
Claim 2
Dependent Claim
137 words
IN A PROCESS FOR SYNTHESIZING DIAMONDS BY FORMING A SATURATED SOLUTION OF CARBON IN A SOLVENT AND SUBJECTING THE SATURATED SOLUTION SIMULTANEOUSLY TO HIGH PRESSURE AND TEMPERATURE TO BRING THE SOLUTION INTO THAT ZONE OF THE DIAMOND-GRAPHITE EQUILIBRIUM DIAGRAM IN WHICH DIAMOND IS THE STABLE PHASE OF CARBON, THEREBY CAUSING CARBON TO PRECIPITATE OUT OF THE SOLUTION IN THE FORM OF DIAMOND; THE STEPS OF SUBJECTING A MIXTURE OF CARBON AND SOLVENT TO PRESSURE AND TEMPERATURE TO MELT THE SOLVENT WHILE THE MIXTURE IS IN THE ZONE OF THE EQUILIBRIUM DIAGRAM IN WHICH GRAPHITE IS THE STABLE PHASE, INCREASING THE TEMPERATURE AND PRESSURE TO BRING THE SOLUTION INTO THE DIAMOND ZONE; MAINTAINING BOTH TEMPERATURE AND PRESSURE CONSTANT AT THEIR REQUIRED LEVEL FOR A PERIOD OF TIME, THEN DECREASING THE TEMPERATURE; AND FINALLY REDUCING THE PRESSURE TO ATMOSPHERIC.
References Cited (Backward Citations)
US2947610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |