US3263233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Directive helical antenna having integral balun-feed
Assignee: Thales SA
•
Filing: 1963-05-06
•
Granted: 1966-07-26
•
Expires: 1983-05-06
Abstract
No abstract record available.
Inventors
- 👤 Spitz Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:30
CPC Classifications
H; H01; H01Q; H01Q11/00; H01Q11/02; H01Q11/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A DIRECTIVE ANTENNA COMPRISING: A TWO-WIRE LINE INCLUDING TWO WIRES; A HELIX WOUND AROUND SAID LINE; A COAXIAL LINE HAVING AN OUTER AND AN INNER CONDUCTOR AND TWO ENDS, SAID OUTER CONDUCTOR SERVING AS ONE OF SAID WIRES; AN ULTRA-HIGH FREQUENCY SOURCE COUPLED TO ONE OF SAID ENDS; AND MEANS FREQUENCY SOURCE COUPLED TO ONE OF SAID OTHER WISE.
Claim 2
Dependent Claim
59 words
A DIRECTIVE ANTENNA COMPRISING: A TWO-WIRE LINE INCLUDING TWO WIRES; A HELIX WOUND AROUND SAID LINE; A COAXIAL LINE HAVING AN OUTER AND AN INNER CONDUCTOR AND TWO ENDS, SAID OUTER CONDUCTOR SERVING AS ONE OF SAID WIRES; AN ULTRA-HIGH FREQUENCY SOURCE COUPLED TO ONE OF SAID ENDS; AND MEANS FREQUENCY SOURCE COUPLED TO ONE OF SAID OTHER WISE.
References Cited (Backward Citations)
US2945227A
Cited
US3113316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |