US2475352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trolley wire tap
Assignee: Individual
•
Filing: 1948-04-19
•
Granted: 1949-07-05
•
Expires: 1968-04-19
Abstract
No abstract record available.
Inventors
- 👤 John F Conrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:27
CPC Classifications
C; C10; C10B; C10B25/00; C10B25/02; C10B25/08; C10B25/12; H; H01; H01R; H01R11/00; H01R11/11; H01R11/12; H01R11/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2077338A
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US2030016A
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US2288680A
Cited
US2419152A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-04 | 1953-01-03 | 1953-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-04 | 1957-01-03 | 1957-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-04 | 1961-01-03 | 1961-07-05 | $7700.00 | Window Closed / Lapsed |