Patent US2987777A successfully refreshed from Google Patents.
US2987777A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing synthetic mica
Assignee: Materion Brush Inc
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Filing: 1959-04-27
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Granted: 1961-06-13
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Expires: 1979-04-27
Abstract
No abstract record available.
Inventors
- 👤 Wallace W Beaver
- 👤 John G Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:42
CPC Classifications
C; C01; C01B; C01B35/00; C01B35/08; C01B33/00; C01B33/20; C01B33/26; C01B33/28; C01B33/36; C01B33/38; C01B33/42; C01B33/425
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
THE PROCESS OF PREPARING FLUOROPHLOGOPITE MICA, INCLUDING THE STEPS OF PROVIDING INGREDIENTS, WHICH, WHEN REACTED IN COMBINATION, WILL PRODUCE A FLUOROPHLOGOPITE MICA OF PREDETERMINED COMPOSITION HAVING THE FOLLOWING FORMULA: XY2 1/2 TO 5SIMO10FN, WHEREIN: X CONSISTS OF AT LEAST ONE CATON SELECTED FROM THE GROUP CONSISTING OF ALKALI METALS, ALKALINE EARTH METALS, AND COMBINATIONS AND MIXTURES THEREOF, AND Y CONSISTS OF AT LEAST ONE CATION SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM, ALUMINIUM, LITHIUM, AND BORON, AND COMBINATIONS AND MIXTURES THEREOF, M VARIES FROM 2-4, AND N VARIES FROM 1-3, INTIMATELY MIXING THE PROVIDED INGREDIENTS IN A FINELY DIVIDED STATE, COMPACTING THE INGREDIENTS AT ROOM TEMPERATURE WITHIN A PRESSURE RANGE PROVIDING, AT THE MINIMUM PRESSURE OF THE RANGE, A COMPACT CAPABLE OF BEING HANDLED WITHOUT DISINTEGRATING AND, AT THE MAXIMUM PRESSURE OF THE RANGE, A COMPACT OF THE MINIMUM POROSITY CAPABLE OF RELEASING GASES FORMED IN THE COMPACT DURING REACTION OF THE INGREDIENTS, AND HEATING THE COMPACT SO FORMED WITHIN THE RANGE OF ABOUT 900*C. TO 1300*C., TO EFFECT COMPLETE REACTION OF ITS INGREDIENTS WHILE THE COMPACT REMAINS IN POROUS AND SUBSTANTIALLY SOLID STATE.
Claim 2
Dependent Claim
184 words
THE PROCESS OF PREPARING FLUOROPHLOGOPITE MICA, INCLUDING THE STEPS OF PROVIDING INGREDIENTS, WHICH, WHEN REACTED IN COMBINATION, WILL PRODUCE A FLUOROPHLOGOPITE MICA OF PREDETERMINED COMPOSITION HAVING THE FOLLOWING FORMULA: XY2 1/2 TO 5SIMO10FN, WHEREIN: X CONSISTS OF AT LEAST ONE CATON SELECTED FROM THE GROUP CONSISTING OF ALKALI METALS, ALKALINE EARTH METALS, AND COMBINATIONS AND MIXTURES THEREOF, AND Y CONSISTS OF AT LEAST ONE CATION SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM, ALUMINIUM, LITHIUM, AND BORON, AND COMBINATIONS AND MIXTURES THEREOF, M VARIES FROM 2-4, AND N VARIES FROM 1-3, INTIMATELY MIXING THE PROVIDED INGREDIENTS IN A FINELY DIVIDED STATE, COMPACTING THE INGREDIENTS AT ROOM TEMPERATURE WITHIN A PRESSURE RANGE PROVIDING, AT THE MINIMUM PRESSURE OF THE RANGE, A COMPACT CAPABLE OF BEING HANDLED WITHOUT DISINTEGRATING AND, AT THE MAXIMUM PRESSURE OF THE RANGE, A COMPACT OF THE MINIMUM POROSITY CAPABLE OF RELEASING GASES FORMED IN THE COMPACT DURING REACTION OF THE INGREDIENTS, AND HEATING THE COMPACT SO FORMED WITHIN THE RANGE OF ABOUT 900*C. TO 1300*C., TO EFFECT COMPLETE REACTION OF ITS INGREDIENTS WHILE THE COMPACT REMAINS IN POROUS AND SUBSTANTIALLY SOLID STATE.
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) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |