US3216814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bending mold with leading apertured plate
Assignee: PPG Industries Inc
•
Filing: 1960-05-02
•
Granted: 1965-11-09
•
Expires: 1980-05-02
Abstract
No abstract record available.
Inventors
- 👤 Shaffer Alvin Clair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:26
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/02; C03B23/023; C03B23/025; C03B23/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
IN A SKELETONIZED MOLD FOR BENDING AND ANNEALING GLASS SHEETS, SAID MOLD COMPRISING AN UPPER SHAPING SURFACE OF SKELETON OUTLINE ADAPTED FOR MOVEMENT THROUGH A TUNNEL-LIKE BENDING AND ANNEALING LEHR IN A PREDETERMINED ORIENTATION, THE IMPROVEMENT COMPRISING A STRESS MODIFYING MEMBER FOR REDUCING STRESS ALONG THE LONGITUDINAL, MARGINAL EDGE OF SAID GLASS SHEET CONSISTING ESSENTIALLY OF AN APERTURED PLATE EXTENDING LONGITUDINALLY SUBSTANTIALLY PARALLEL TO A PORTION OF THE LEADING EDGE OF SAID SKELETON OUTLINE AND LOCATED SLIGHTLY IN ADVANCE OF SAID
Claim 2
Dependent Claim
81 words
IN A SKELETONIZED MOLD FOR BENDING AND ANNEALING GLASS SHEETS, SAID MOLD COMPRISING AN UPPER SHAPING SURFACE OF SKELETON OUTLINE ADAPTED FOR MOVEMENT THROUGH A TUNNEL-LIKE BENDING AND ANNEALING LEHR IN A PREDETERMINED ORIENTATION, THE IMPROVEMENT COMPRISING A STRESS MODIFYING MEMBER FOR REDUCING STRESS ALONG THE LONGITUDINAL, MARGINAL EDGE OF SAID GLASS SHEET CONSISTING ESSENTIALLY OF AN APERTURED PLATE EXTENDING LONGITUDINALLY SUBSTANTIALLY PARALLEL TO A PORTION OF THE LEADING EDGE OF SAID SKELETON OUTLINE AND LOCATED SLIGHTLY IN ADVANCE OF SAID
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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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |