US2676085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for indicating instantaneously and at a remote point the tuning condition of one or more wave signal receivers
Assignee: TNC US Holdings Inc
•
Filing: 1949-02-02
•
Granted: 1954-04-20
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Expires: 1969-02-02
Abstract
No abstract record available.
Inventors
- 👤 Robert L Freeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:31
CPC Classifications
H; H04; H04H; H04H60/00; H04H60/35; H04H60/38; H04H60/41; H04H60/43
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1587122A
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US1632106A
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US1965393A
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US2073050A
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US1933650A
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US2139103A
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US2381920A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |