US3432284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of float glass of a thickness greater than equilibrium thickness
Assignee: PPG Industries Inc
•
Filing: 1967-04-10
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Granted: 1969-03-11
•
Expires: 1987-04-10
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Gulotta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:53
CPC Classifications
C; C03; C03B; C03B18/00; C03B18/02; C03B18/04; C03B18/08; C03C; C03C3/00; C03C3/04; C03C3/076; C03C3/083; C03C3/085; C03C3/087; Y; Y02; Y02P; Y02P40/00; Y02P40/50; Y02P40/57
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |