US2992079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Barium titanate single crystals
Assignee: AT&T Inc
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Filing: 1959-10-29
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Granted: 1961-07-11
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Expires: 1979-10-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert C Linares
- 👤 James W Nielsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:10
CPC Classifications
C; C30; C30B; C30B9/00; C30B29/00; C30B29/10; C30B29/16; C30B29/22; C30B29/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
THE METHOD OF PRODUCING BUTTERFLY TWIN SINGLE CRYSTALS OF BARIUM TITANATE COMPRISING THE STEPS OF ADDING BARIUM TITANATE PARTICLES OF SIZE UP TO 6 MICRONS TO A FLUX MATERIAL WHICH, IN THE LIQUID STATE, IS A SOLVENT THEREFOR, HEATING THE MIXTURE OF BARIUM TITANATE AND FLUX TO AN ELEVATED TEMPERATURE TO FORM A MELT, MAINTAINING THE SAID MIXTURE AT THE SAID ELEVATED TEMPERATURE FOR A PERIOD OF TIME DURING WHICH A PORTION OF THE BARIUM TITANATE DISSOLVES, THE RATIO OF BARIUM TITANATE TO FLUX IN THE SAID MIXTURE BEING GREATER THAN THE SOLUBILITY LIMIT OF BARIUM TITANATE IN THE FLUX MATERIAL AT THE SAID ELEVATED TEMPERATURE, AND COOLING THE MELT TO PROMOTE THE CRYSTAL GROWTH.
Claim 2
Independent Claim
115 words
THE METHOD OF PRODUCING BUTTERFLY TWIN SINGLE CRYSTALS OF BARIUM TITANATE COMPRISING THE STEPS OF ADDING BARIUM TITANATE PARTICLES OF SIZE UP TO 6 MICRONS TO A FLUX MATERIAL WHICH, IN THE LIQUID STATE, IS A SOLVENT THEREFOR, HEATING THE MIXTURE OF BARIUM TITANATE AND FLUX TO AN ELEVATED TEMPERATURE TO FORM A MELT, MAINTAINING THE SAID MIXTURE AT THE SAID ELEVATED TEMPERATURE FOR A PERIOD OF TIME DURING WHICH A PORTION OF THE BARIUM TITANATE DISSOLVES, THE RATIO OF BARIUM TITANATE TO FLUX IN THE SAID MIXTURE BEING GREATER THAN THE SOLUBILITY LIMIT OF BARIUM TITANATE IN THE FLUX MATERIAL AT THE SAID ELEVATED TEMPERATURE, AND COOLING THE MELT TO PROMOTE THE CRYSTAL GROWTH.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |