US2764848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved glass cutting method
Assignee: PPG Industries Inc
•
Filing: 1952-10-17
•
Granted: 1956-10-02
•
Expires: 1972-10-17
Abstract
No abstract record available.
Inventors
- 👤 Florian V Atkeson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:35
CPC Classifications
C; C03; C03B; C03B33/00; Y; Y10; Y10T; Y10T225/00; Y10T225/10; Y10T225/12; Y10T225/30; Y10T225/307; Y10T225/321; Y10T225/325
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
IN A METHOD OF CUTTING GLASS COMPRISING SCORING A LINE ALONG A SURFACE OF A GLASS SHEET AND OPENING THE SCORE LINE, THE IMPROVEMENT COMPRISING APPLYING A DILUTE AQUEOUS SOLUTION OF A WATER SOLUBLE WETTING AGENT TO THE SCORE LINE IN THE GLASS SURFACE JUST PRIOR TO THE OPENING OPERATION.
Claim 2
Dependent Claim
50 words
IN A METHOD OF CUTTING GLASS COMPRISING SCORING A LINE ALONG A SURFACE OF A GLASS SHEET AND OPENING THE SCORE LINE, THE IMPROVEMENT COMPRISING APPLYING A DILUTE AQUEOUS SOLUTION OF A WATER SOLUBLE WETTING AGENT TO THE SCORE LINE IN THE GLASS SURFACE JUST PRIOR TO THE OPENING OPERATION.
References Cited (Backward Citations)
US989603A
Cited
US2470444A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |