US3509575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Broadband uhf dipole antenna
Assignee: Panasonic Holdings Corp
•
Filing: 1968-05-09
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Granted: 1970-04-28
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Expires: 1988-05-09
Abstract
No abstract record available.
Inventors
- 👤 Noriyuki Kawamoto
- 👤 Kenji Katayama
- 👤 Takeshi Miyata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:59
CPC Classifications
H; H01; H01Q; H01Q21/00; H01Q21/29; H01Q5/00; H01Q5/40; H01Q5/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE24413E
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-27 | 1973-10-27 | 1974-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-27 | 1977-10-27 | 1978-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-27 | 1981-10-27 | 1982-04-28 | $7700.00 | Window Closed / Lapsed |