US3782981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alpha-wollastonite pins and setters
Assignee: Corning Glass Works
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Filing: 1972-05-01
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Granted: 1974-01-01
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Expires: 1992-05-01
Abstract
Abstract THIS INVENTION RELATES TO THE GLAZE FIRING OF CERAMIC AND GLASS-CERAMIC ARTICLES WHEREIN SUCH ARTICLES ARE SUPPORTED ON SETTER PINS WITHIN THE FIRING CHAMBER. MORE PARTICULARLY, THIS INVENTION IS CONCERNED WITH THE PRODUCTION OF SUCH PINS WITH ACCOMPANYING SETTERS FROM ALPHA-WOLLASTONITE.
Inventors
- 👤 D Rostoker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:43
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/32; C04B33/34; C04B35/00; C04B35/01; C04B35/16; C04B35/22
Claims Analysis
Total Claims: 0
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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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |