US2583000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent conducting films
Assignee: PPG Industries Inc
•
Filing: 1946-05-14
•
Granted: 1952-01-22
•
Expires: 1966-05-14
Abstract
No abstract record available.
Inventors
- 👤 William O Lytle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:33
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/88; C; C03; C03C; C03C17/00; C03C17/22; C03C17/23; C03C17/25; C03C17/253; H01B; H01B1/00; H01J29/02; H01J29/10; H01J29/18; H01J29/28; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/211; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/112
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-21 | 1955-07-23 | 1956-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-21 | 1959-07-23 | 1960-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-21 | 1963-07-23 | 1964-01-22 | $7700.00 | Window Closed / Lapsed |