Patent US3070459A successfully refreshed from Google Patents.
US3070459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treating glass sheets
Assignee: PPG Industries Inc
•
Filing: 1959-05-01
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Granted: 1962-12-25
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Expires: 1979-05-01
Abstract
No abstract record available.
Inventors
- 👤 Stanley A Schaffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:21
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/02; Y; Y10; Y10S; Y10S65/00; Y10S65/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
IN THE ART OF COATING GLASS SHEETS WHEREIN A GLASS SHEET IS DISPOSED IN A SUBSTANTILLY HORIZONTAL PLANE WHILE ITS UPPER SURFACE IS COVERED WITH A COATING MATERIAL AND THE COATED GLASS SHEET IS HEATED TO A TEMPERATURE SUFFICIENT TO FUSE THE COATING MATERIAL ONTO ITS UPPER SURFACE,
Claim 2
Dependent Claim
48 words
IN THE ART OF COATING GLASS SHEETS WHEREIN A GLASS SHEET IS DISPOSED IN A SUBSTANTILLY HORIZONTAL PLANE WHILE ITS UPPER SURFACE IS COVERED WITH A COATING MATERIAL AND THE COATED GLASS SHEET IS HEATED TO A TEMPERATURE SUFFICIENT TO FUSE THE COATING MATERIAL ONTO ITS UPPER SURFACE,
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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) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |