Patent US2569773A successfully refreshed from Google Patents.
US2569773A
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Electroconductive article
Assignee: PPG Industries Inc
•
Filing: 1948-11-20
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Granted: 1951-10-02
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Expires: 1968-11-20
Abstract
No abstract record available.
Inventors
- 👤 Leighton E Orr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:09
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/84; C; C03; C03C; C03C17/00; C03C17/22; C03C17/23; C03C17/25; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/211; C03C2217/229; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/112; C03C2218/15; C03C2218/152; H05B2203/00; H05B2203/017
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2021661A
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US2061106A
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US2119680A
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US2061107A
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GB461275A
Cited
US2429420A
Cited
US2431923A
Cited
US2419537A
Cited
US2475379A
Cited
US2507036A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |