US2522734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Register device
Assignee: Automatic Electric Laboratories Inc
•
Filing: 1943-08-20
•
Granted: 1950-09-19
•
Expires: 1963-08-20
Abstract
No abstract record available.
Inventors
- 👤 Fredric E Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:22
CPC Classifications
G; G06; G06M; G06M1/00; G06M1/04; G06M1/041; H; H04; H04M; H04M15/00; H04M15/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US740889A
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US1472465A
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US1671553A
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US1939822A
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US1615399A
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FR648393A
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US2040025A
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US1948946A
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US2014049A
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US1979028A
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US2097151A
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US2228069A
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US2266015A
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US2368201A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-18 | 1954-03-20 | 1954-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-18 | 1958-03-20 | 1958-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-18 | 1962-03-20 | 1962-09-19 | $7700.00 | Window Closed / Lapsed |