Patent US3582301A successfully refreshed from Google Patents.
US3582301A
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US
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Method for forming glass-ceramic honeycomb structures
Assignee: Corning Glass Works
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Filing: 1968-10-07
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Granted: 1971-06-01
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Expires: 1988-10-07
Abstract
Abstract A METHOD FOR FORMING HONEYCOMB STRUCTURES IN WHICH A PLURALITY OF MULTICHANNELED GLASS TUBES ARE STACKED TOGETHER AND HEATED TO FUSE THE TUBES TOGETHER AND PARTIALLY TO DEVITRIFY THE TUBES TO FORM A SEMICRYSTALLINE BODY. THE TUBES ARE PRESSED TOGETHER, WHILE HEATING IS EFFECTED BY MEANS OF A HOT GAS WHICH IS PASSED THROUGH THE CHANNELS IN THE TUBES BY A PRESSURE DIFFERENTIAL WHICH IS MAINTAINED ON OPPOSITE SIDES OF THE HONEYCOMB STRUCTURE. D R A W I N G
Inventors
- 👤 Carl D Andrysiak
- 👤 Robert G Foster
- 👤 Gerald A Levine
- 👤 Max R Montierth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:44
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/20; C03B23/207; F; F28; F28D; F28D7/00; F28D7/0041; F28F; F28F21/00; F28F21/006; F28F21/04
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) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |