Patent US1085810A successfully refreshed from Google Patents.
US1085810A
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US
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Electromagnetic relay.
Assignee: American District Telegraph Co
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Filing: 1913-01-11
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Granted: 1914-02-03
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Expires: 1933-01-11
Abstract
No abstract record available.
Inventors
- 👤 Joseph F D Hoge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:54
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/16; H01H50/18; H01H50/34; H01H50/54
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) | 1917-02-02 | 1917-08-04 | 1918-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-02-02 | 1921-08-04 | 1922-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-02-02 | 1925-08-04 | 1926-02-03 | $7700.00 | Window Closed / Lapsed |