US3365314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing articles containing predominantly cordierite, anorthite, spinel and/or forsterite
Assignee: Schott AG
•
Filing: 1963-11-05
•
Granted: 1968-01-23
•
Expires: 1983-11-05
Abstract
No abstract record available.
Inventors
- 👤 Sack Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:09
CPC Classifications
C; C03; C03C; C03C10/00; C03C10/0036; C03C10/0045; C04; C04B; C04B35/00; C04B35/01; C04B35/16; C04B35/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2920971A
Cited
US3019116A
Cited
US3037828A
Cited
US3117881A
Cited
US3083123A
Cited
US3246972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |