US2829367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television lead-in coupler
Assignee: Individual
•
Filing: 1953-02-26
•
Granted: 1958-04-01
•
Expires: 1973-02-26
Abstract
No abstract record available.
Inventors
- 👤 Robert F Rychlik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:40
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/1271; H01Q1/1285; H01P; H01P5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1715952A
Cited
GB286279A
Cited
GB333150A
Cited
US2215790A
Cited
US2206820A
Cited
US2337612A
Cited
US2404085A
Cited
US2384604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |