US3232782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature resistant vitreous material and method of producing same
Assignee: Owens Corning
•
Filing: 1960-08-05
•
Granted: 1966-02-01
•
Expires: 1980-08-05
Abstract
No abstract record available.
Inventors
- 👤 Richard F Shannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:11
CPC Classifications
C; C03; C03C; C03C25/00; C03C25/10; C03C25/42; C03C17/00; C03C17/22; C03C17/23; C03C17/25; C03C3/00; C03C3/04; C03C3/06; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/229; C03C2217/23; C03C2217/28; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/111; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/266
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
AN ARTICLE OF MANUFACTURE COMPRISING A VITREOUS BODY CONSISTING ESSENTIASLLY OF SILICA SUBSTANTIALLY DEVOID OF FLUXING METAL OXIDES AND HAVING A MAXIMUM DIMENSION IN AT LEAST ONE DIRECTION NOT GREATER THAN 0.1 INCH, AND A SUBSTANTIALLY CONTINUOUS COATING FORMED IN SITU ON THE SURFACES OF SAID SILICA AND CONSISTING ESSENTIALLY OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE OXIDES, HYDROXIDES, AND SILICATES OF CHROMIUM, ALUMINUM, ZIRCONIUM, TITANIUM, BERYLLIUM AND MAGNESIUM IN DIRECT CONTACT WITH THE SILICA, SAID COATING CONSTITUTING AT LEAST 3 PERCENT OF THE WEIGHT OF THE VITREOUS BODY AND COATING.
Claim 2
Dependent Claim
96 words
AN ARTICLE OF MANUFACTURE COMPRISING A VITREOUS BODY CONSISTING ESSENTIASLLY OF SILICA SUBSTANTIALLY DEVOID OF FLUXING METAL OXIDES AND HAVING A MAXIMUM DIMENSION IN AT LEAST ONE DIRECTION NOT GREATER THAN 0.1 INCH, AND A SUBSTANTIALLY CONTINUOUS COATING FORMED IN SITU ON THE SURFACES OF SAID SILICA AND CONSISTING ESSENTIALLY OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE OXIDES, HYDROXIDES, AND SILICATES OF CHROMIUM, ALUMINUM, ZIRCONIUM, TITANIUM, BERYLLIUM AND MAGNESIUM IN DIRECT CONTACT WITH THE SILICA, SAID COATING CONSTITUTING AT LEAST 3 PERCENT OF THE WEIGHT OF THE VITREOUS BODY AND COATING.
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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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |