US3582454A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass article forming and trimming
Assignee: Corning Glass Works
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Filing: 1968-11-04
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Granted: 1971-06-01
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Expires: 1988-11-04
Abstract
Abstract COMPOSITE SHEET GLASS HAVING CENTRAL STATUM AND OUTER STRATUMS IS TRIMMED BY FORCING AN OUTER STRATUM OVER THE CENTRAL STRATUM TO PRODUCE A TRIMMED EDGE WHICH IS VIRTUALLY ENCASED BY THE OUTER STRATUMS.
Inventors
- 👤 James W Giffen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:11
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/02; C03B23/023; C03B23/03; C03B23/0305; C03B21/00; C03B21/02; C03B23/035; C03B23/0352; C03B9/00; C03B9/12; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/2419; Y10T428/24264
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 |