US3380847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermally stable fibrous alkali metal titanates
Assignee: EIDP Inc
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Filing: 1964-11-17
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Granted: 1968-04-30
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Expires: 1984-11-17
Abstract
No abstract record available.
Inventors
- 👤 Lewis George Leoutsacos
- 👤 Hugh C Gulledge
- 👤 Teufer Gunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:00
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/131; C01; C01G; C01G23/00; C01G23/003; C01G23/005; C04B20/00; C04B20/10; C04B20/1055; C04B30/00; C04B30/02; C04B35/00; C04B35/622; C04B35/62227; C04B35/62231; C04B35/62259; C04B41/00; C04B41/009; C04B41/45; C04B41/4584; C01P; C01P2004/00; C01P2004/10; C01P2004/54; C01P2004/60; C01P2004/61; C01P2004/62; Y; Y10; Y10S; Y10S264/00; Y10S264/19; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2958
Claims Analysis
Total Claims: 0
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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) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |