US2877346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control circuit for f. m. tuning indicator tube
Assignee: International Standard Electric Corp
•
Filing: 1953-12-07
•
Granted: 1959-03-10
•
Expires: 1973-12-07
Abstract
No abstract record available.
Inventors
- 👤 Weckerle Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:36
CPC Classifications
H; H03; H03J; H03J3/00; H03J3/02; H03J3/12; H03J3/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AU105311B
Cited
US2273098A
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US2286412A
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US2572424A
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US2514327A
Cited
US2595441A
Cited
US2686259A
Cited
US2743361A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |