Patent US1352212A successfully refreshed from Google Patents.
US1352212A
Expired / Lapsed
US
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Controlling device for electric circuits
Assignee: STANDARD ENGINEERING Co
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Filing: 1919-01-31
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Granted: 1920-09-07
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Expires: 1939-01-31
Abstract
No abstract record available.
Inventors
- 👤 Edward C Newcomb
- 👤 Lewis L Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:45
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/20; G05D16/2006; G05D16/2066; G05D16/2073
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) | 1923-09-07 | 1924-03-08 | 1924-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-09-07 | 1928-03-08 | 1928-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-09-07 | 1932-03-08 | 1932-09-07 | $7700.00 | Window Closed / Lapsed |