Patent US3560182A successfully refreshed from Google Patents.
US3560182A
Expired / Lapsed
US
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Bending glass sheets
Assignee: PPG Industries Inc
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Filing: 1968-01-24
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Granted: 1971-02-02
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Expires: 1988-01-24
Abstract
Abstract METHOD AND APPARATUS FOR BENDING GLASS SHEETS BY GRAVITY SAGGING USING A SLIDE CONTAINING ONE OR MORE DISCONTINUITIES, SUCH AS GROOVES AND/OR RIDGES, EXTENDING CIRCUMFERENTIALLY OF THE SLIDE IN SPACED HORIZONTAL PLANES TO INTERRUPT FREE SLIDING OF THE SHEET DOWN THE SLIDE INTERMITTENTLY TO INTERRUPT ANY TILTING OF THE GLASS SHEET RELATIVE TO THE SHAPING SURFACE OF THE BENDING APPARATUS.
Inventors
- 👤 James S Golightly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:00
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/02; C03B23/023; C03B23/025; C03B23/0252
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |