US2208455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry plate electrode system having a control electrode
Assignee: General Electric Co
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Filing: 1939-11-13
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Granted: 1940-07-16
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Expires: 1959-11-13
Abstract
No abstract record available.
Inventors
- 👤 Glaser August
- 👤 Koch Werner
- 👤 Voigt Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:26
CPC Classifications
H; H10; H10D; H10D10/00; H10D48/00; H10D48/01; H10D48/04; H10D48/043; H10D48/046; H10D62/00; H10D62/80; H10D62/86; H10D62/864; H10D99/00; H10N; H10N70/00; H10P; H10P10/00; H10P95/00; H10P95/80
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) | 1943-07-16 | 1944-01-15 | 1944-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-07-16 | 1948-01-15 | 1948-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-07-16 | 1952-01-15 | 1952-07-16 | $7700.00 | Window Closed / Lapsed |