US3689304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treating glass
Assignee: Pilkington Group Ltd
•
Filing: 1970-04-22
•
Granted: 1972-09-05
•
Expires: 1990-04-22
Abstract
Abstract A HOT GLASS RIBBON IS COATED WITH A METAL OXIDE BY PASSING THE RIBBON THROUGH AN ENCLOSED CHAMBER, AND AT THE SAME TIME DIRECTING A SELECTED COMPOUND IN AN ORGANIC SOLVENT AGAINST THE RIBBON, THE COMPOUND BEING SUCH AS TO REACT ON CONTACTING THE HOT GLASS TO PRODUCE A METAL OXIDE COATING. A FLAME INHIBITING ATMOSPHERE IS MAINTAINED WITHIN THE ENCLOSED CHAMBER, THE ATMOSPHERE BEING CONTINUOUSLY DISPLACED AND BEING MAINTAINED AT A TEMPERATURE SUFFICIENTLY HIGH TO PREVENT DETRIMENTAL COOLING EFFECTS ON THE RIBBON.
Inventors
- 👤 Charles Raymond Bamford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:27
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/22; C03C17/23; C03C17/25; C03C17/001; C03C17/002; B; B05; B05B; B05B13/00; B05B13/02; B05B13/04; B05B13/0463; B05B13/0468; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/23; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/112
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |