Patent US3827892A successfully refreshed from Google Patents.
US3827892A
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US
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Mica based,ceramic composite material
Assignee: United States Department of the Army
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Filing: 1973-05-07
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Granted: 1974-08-06
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Expires: 1993-05-07
Abstract
Abstract THE USE OF SYNTHETIC, FLUORINE CONTAINING MICAS, BY HOTPRESSING AS A SECOND PHASE INCORPORATION INTO A CERRAMIC BODY IN AN AMOUNT OF 5 TO 50% BY VOLUME TO PRODUCE A NOVEL PARTICULATE DISPERSION OR A DISPERSED MICRO-LAMINATE THEREBY ENHANCING THE PROPERTIES OF THE CERAMIC MATERIALS.
Inventors
- 👤 Cauley J Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:51
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/03; C04B35/04; C04B35/053; C04B35/10; C04B35/111; C04B35/14; C04B35/16; C04B35/515; C04B35/58; C04B35/584; C04B35/593; C04B35/622; C04B35/64; C04B35/645; H; H01; H01B; H01B3/00; H01B3/02; H01B3/04; Y; Y10; Y10S; Y10S106/00; Y10S106/03; Y10T; Y10T428/00; Y10T428/25; Y10T428/251; Y10T428/29; Y10T428/2911
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |