US2576392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated glass unit
Assignee: PPG Industries Inc
•
Filing: 1945-05-15
•
Granted: 1951-11-27
•
Expires: 1965-05-15
Abstract
No abstract record available.
Inventors
- 👤 Daniel T Downes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:20
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/54; E06B3/5436; E06B3/5427
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1848907A
Cited
US1283775A
Cited
US1628705A
Cited
US2356878A
Cited
US2326203A
Cited
US2293656A
Cited
US2364512A
Cited
US2388042A
Cited
US2403060A
Cited
US2403061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-26 | 1955-05-28 | 1955-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-26 | 1959-05-28 | 1959-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-26 | 1963-05-28 | 1963-11-27 | $7700.00 | Window Closed / Lapsed |