US3272686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural ceramic bodies and method of making same
Assignee: Corning Glass Works
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Filing: 1962-03-23
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Granted: 1966-09-13
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Expires: 1982-03-23
Abstract
No abstract record available.
Inventors
- 👤 Gail P Smith
- 👤 Guy E Stong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:07
CPC Classifications
B; B29; B29D; B29D99/00; B29D99/0089; B28; B28B; B28B1/00; B28B1/002; B29D24/00; B29D24/002; B29D24/005; C; C04; C04B; C04B38/00; C04B38/008; C04B38/0083; E; E04; E04C; E04C2/00; E04C2/30; E04C2/34; E04C2/36; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1003; Y10T428/00; Y10T428/24; Y10T428/24149; Y10T428/24157
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
100 words
A STRUCTURAL CERAMIC BODY COMPRISING A CERAMIC HONEYCOMB HAVING OPPOSED MAJOR SURFACES, CHANNELS EXTENDING THROUGH SAID HONEYCOMB AND TERMINATING AT SAID SURFACES, A RIGID CERAMIC SHEET CERAMICALLY BONDED TO EACH OF SAID MAJOR FACES BY A COMPOSITION COMPOSED, BY WEIGHT, OF ABOUT 1 TO 16 PERCENT OF LEAD OXIDE, ABOUT 1 TO 15 PERCENT OF A FLUX, ABOUT 1 TO 6 PERCENT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF SILICON CARBIDE AND SULFUR TRIOXIDE, AND THE REMAINDER SUBSTANTIALLY ALL A LITHIUM ALUMINOSILICATE CERAMIC MATERIAL, SAID HONEYCOMB, CERAMIC SHEETS AND CERAMIC COMPOSITION HAVING A LOW COEFFICIENT OF THERMAL EXPANSION.
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |