US3495183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distributional amplifier means
Assignee: Jfd Electronics Corp
•
Filing: 1965-10-28
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Granted: 1970-02-10
•
Expires: 1985-10-28
Abstract
No abstract record available.
Inventors
- 👤 George J Doundoulakis
- 👤 Harold R Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:56
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/08; H03F1/18; H03F3/00; H03F3/189; H03F3/19; H03F3/193; H03F3/1935
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1801870A
Cited
US2205075A
Cited
US2863006A
Cited
US2978579A
Cited
US3097343A
Cited
US3222611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |