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Patent US2712414A successfully refreshed from Google Patents.
US2712414A
Expired / Lapsed
US
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Electrical analogue device
Assignee: Askania Regulator Co
•
Filing: 1950-11-18
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Granted: 1955-07-05
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Expires: 1970-11-18
Abstract
No abstract record available.
Inventors
- 👤 Ziebolz Herbert
- 👤 Mark E Campbell
- 👤 John A Baring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:39
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/48; G06G7/66
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1343198A
Cited
US2163873A
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US2283993A
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US2294165A
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US2557954A
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US2450772A
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US2470434A
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US2519615A
Cited
US2503213A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-04 | 1959-01-03 | 1959-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-04 | 1963-01-03 | 1963-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-04 | 1967-01-03 | 1967-07-05 | $7700.00 | Window Closed / Lapsed |