US2589310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of artificial crystals
Assignee: International Standard Electric Corp
•
Filing: 1948-02-12
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Granted: 1952-03-18
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Expires: 1968-02-12
Abstract
No abstract record available.
Inventors
- 👤 Tournier Marcel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:08
CPC Classifications
C; C30; C30B; C30B7/00; Y; Y10; Y10S; Y10S159/00; Y10S159/90; Y10T; Y10T117/00; Y10T117/10; Y10T117/1024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A PROCESS FOR PREPARATION OF ARTIFICIAL CRYSTALS COMPRISING THE STEPS OF OBTAINING A SUPERSATURATED SOLUTION OF A SALT IN A SOLVENT, APPLYING TO SAID SUPERSATURATED SOLUTION MECHANICAL VIBRATIONS, ELIMINATING ANY DEPOSIT OF CRYSTAL NUCLEI FORMED ON IMPURITIES IN SAID SOLUTION BY SAIDSAID MECHANICAL VIBRATIONS, THEN INTRODUCING INTO SAID SOLUTION CRYSTAL NUCLEI TO CONSITUTED THE CENTERS OF THE DESIRED CRYSTALS, AND FORMING SAID CRYSTALS ON SAID NUCLEI.
Claim 2
Dependent Claim
66 words
A PROCESS FOR PREPARATION OF ARTIFICIAL CRYSTALS COMPRISING THE STEPS OF OBTAINING A SUPERSATURATED SOLUTION OF A SALT IN A SOLVENT, APPLYING TO SAID SUPERSATURATED SOLUTION MECHANICAL VIBRATIONS, ELIMINATING ANY DEPOSIT OF CRYSTAL NUCLEI FORMED ON IMPURITIES IN SAID SOLUTION BY SAIDSAID MECHANICAL VIBRATIONS, THEN INTRODUCING INTO SAID SOLUTION CRYSTAL NUCLEI TO CONSITUTED THE CENTERS OF THE DESIRED CRYSTALS, AND FORMING SAID CRYSTALS ON SAID NUCLEI.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |