Patent GB623992A successfully refreshed from Google Patents.
Patent US2341526A successfully refreshed from Google Patents.
US2341526A
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Amplifying and detecting system
Assignee: ILLINOIS TESTING LABORATORIES
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Filing: 1939-07-08
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Granted: 1944-02-15
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Expires: 1959-07-08
Abstract
No abstract record available.
Inventors
- 👤 Victor W Breitenstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:13
CPC Classifications
B; B60; B60M; B60M1/00; B60M1/12; B60M1/14; G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/016; H; H03; H03F; H03F9/00; H03F9/02
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) | 1947-02-14 | 1947-08-16 | 1948-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-02-14 | 1951-08-16 | 1952-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-02-14 | 1955-08-16 | 1956-02-15 | $7700.00 | Window Closed / Lapsed |