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US2541247A
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Assignee: CONTROL INSTR CO Inc
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Filing: 1947-11-26
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Granted: 1951-02-13
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Expires: 1967-11-26
Abstract
No abstract record available.
Inventors
- 👤 Donald L Herr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:48
CPC Classifications
H; H02; H02J; H02J13/00; H02J13/18; H02J13/333
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1320807A
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US2087674A
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US2266779A
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US2382055A
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US2294457A
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US2438825A
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US2453911A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |