US3345635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folded vertical monopole antenna
Assignee: Collins Radio Co
•
Filing: 1965-10-11
•
Granted: 1967-10-03
•
Expires: 1985-10-11
Abstract
No abstract record available.
Inventors
- 👤 Richard C Fenwick
- 👤 Roger A Markley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:40
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/30; H01Q9/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
AN APPARATUS COMPRISING A PAIR OF MONOPOLE RADIATING ELEMENTS EXTENDING IN THE SAME GENERAL DIRECTION, ONE OF SAID MONOPOLES BEING CONNECTED TO GROUND AND THE OTHER OF SAID MONOPOLES BEING CONNECTED TO A SIGNAL SOURCE, A SINGLE CONTINUOUS HALF WAVELENGTH TRANSMISSION LINE SECTION CONNECTING THE ENDS OF THE MONOPOLE RADIATING ELEMENTS, AND THE HALF WAVELENGTH SECTION OF LINE WOUND ABOUT THE SURFACE OF AN IMAGINARY CONE SO AS TO DIMENSIONALLY SHORTEN THE HALF WAVELENGTH SECTION AND PRODUCE AN ANTENNA WHICH REQUIRES A SMALL SPACE.
Claim 2
Independent Claim
84 words
AN APPARATUS COMPRISING A PAIR OF MONOPOLE RADIATING ELEMENTS EXTENDING IN THE SAME GENERAL DIRECTION, ONE OF SAID MONOPOLES BEING CONNECTED TO GROUND AND THE OTHER OF SAID MONOPOLES BEING CONNECTED TO A SIGNAL SOURCE, A SINGLE CONTINUOUS HALF WAVELENGTH TRANSMISSION LINE SECTION CONNECTING THE ENDS OF THE MONOPOLE RADIATING ELEMENTS, AND THE HALF WAVELENGTH SECTION OF LINE WOUND ABOUT THE SURFACE OF AN IMAGINARY CONE SO AS TO DIMENSIONALLY SHORTEN THE HALF WAVELENGTH SECTION AND PRODUCE AN ANTENNA WHICH REQUIRES A SMALL SPACE.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |