US3286269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna
Assignee: Individual
•
Filing: 1964-02-10
•
Granted: 1966-11-15
•
Expires: 1984-02-10
Abstract
No abstract record available.
Inventors
- 👤 Cramner Karl Torbjorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:13
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/30; H01Q9/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A QUARTER WAVE ANTENNA OF THE GROUND SURFACE TYPE, COMPRISING A RADIATION ELEMENT HAVING A PLASTIC CYLINDRICAL PORTION, AN INTEGRAL SUBSTANTIALLY FLAT TOP PORTION CLOSING SAID CYLINDRICAL PORTION AND A METAL NETTING CARRIED BY SAID PORTIONS AND HAVING A FEED POINT, A THIN-WALLED METAL CYLINDER LOCATED WITHIN SAID ELEMENT AND SPACED FROM THE CYLINDRICAL PORTION THEREOF, WHEREBY SAID METAL CYLINDER AND SAID METAL NETTING CONSTITUTE RESPECTIVELY THE INNER AND OUTER CONDUITS OF A COAXIAL RESONATOR, GROUNDED SUPPORTING MEANS CARRYING SAID ELEMENT, SAID METAL CYLINDER BEING
Claim 2
Dependent Claim
85 words
A QUARTER WAVE ANTENNA OF THE GROUND SURFACE TYPE, COMPRISING A RADIATION ELEMENT HAVING A PLASTIC CYLINDRICAL PORTION, AN INTEGRAL SUBSTANTIALLY FLAT TOP PORTION CLOSING SAID CYLINDRICAL PORTION AND A METAL NETTING CARRIED BY SAID PORTIONS AND HAVING A FEED POINT, A THIN-WALLED METAL CYLINDER LOCATED WITHIN SAID ELEMENT AND SPACED FROM THE CYLINDRICAL PORTION THEREOF, WHEREBY SAID METAL CYLINDER AND SAID METAL NETTING CONSTITUTE RESPECTIVELY THE INNER AND OUTER CONDUITS OF A COAXIAL RESONATOR, GROUNDED SUPPORTING MEANS CARRYING SAID ELEMENT, SAID METAL CYLINDER BEING
References Cited (Backward Citations)
US2624844A
Cited
US2531476A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |