US1475650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass-melting pot
Assignee: PPG Industries Inc
•
Filing: 1921-05-25
•
Granted: 1923-11-27
•
Expires: 1941-05-25
Abstract
No abstract record available.
Inventors
- 👤 Osborne Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:43
CPC Classifications
C; C03; C03B; C03B5/00; C03B5/06; C03B5/08
Claims Analysis
Total Claims: 0
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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) | 1926-11-26 | 1927-05-28 | 1927-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-11-26 | 1931-05-28 | 1931-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-11-26 | 1935-05-28 | 1935-11-27 | $7700.00 | Window Closed / Lapsed |