US2850684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-resetting electrical network automatically responsive to a condition
Assignee: Specialties Development Corp
•
Filing: 1954-01-11
•
Granted: 1958-09-02
•
Expires: 1974-01-11
Abstract
No abstract record available.
Inventors
- 👤 Klein Clifford John
- 👤 Raymond E Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:03
CPC Classifications
G; G08; G08B; G08B17/00; G08B17/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB230455A
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US1694264A
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US1915137A
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US2192035A
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US2276855A
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US2571791A
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US2532287A
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US2608635A
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US2753494A
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US2781505A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |