US3676098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of bending glass sheets
Assignee: Pilkington North America Inc
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Filing: 1970-07-16
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Granted: 1972-07-11
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Expires: 1990-07-16
Abstract
Abstract A method of bending glass sheets in which a sheet, that has been heatedto a temperature at which the glass softens, has a surface thereof cooled prior to bending the heated and softened sheet against a shaping mold; together with apparatus for use in performing this method.
Inventors
- 👤 Harold R Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:24
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/02; C03B23/023; C03B23/03; C03B2225/00; C03B2225/02
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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |