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Patent US2374214A successfully refreshed from Google Patents.
US2374214A
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Conductive papers
Assignee: Western Union Telegraph Co
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Filing: 1939-07-27
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Granted: 1945-04-24
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Expires: 1959-07-27
Abstract
No abstract record available.
Inventors
- 👤 Bernard L Kline
- 👤 Curt E Mobius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:38
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/20; D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/14; D21H17/63; D21H23/00; D21H23/76; H; H01; H01B; H01B1/00; H01B1/20; H01B1/22; H04; H04L; H04L13/00; H04L13/02; H04L13/06; H04N; H04N1/00; H04N1/23; D21H17/06; D21H17/67; D21H17/69; D21H21/00; D21H21/14; D21H23/02
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) | 1948-04-23 | 1948-10-23 | 1949-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-04-23 | 1952-10-23 | 1953-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-04-23 | 1956-10-23 | 1957-04-24 | $7700.00 | Window Closed / Lapsed |