US3136996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Omnirange beacon antenna
Assignee: TDK Micronas GmbH
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Filing: 1960-10-13
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Granted: 1964-06-09
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Expires: 1980-10-13
Abstract
No abstract record available.
Inventors
- 👤 Ernest G Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:38
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/12; H01Q3/14; G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
64 words
APPARATUS FOR CONTROLLING MODULATION FOR USE IN AN ANTENNA HAVING A CENTRAL RADIATING ELEMENT, COMPRISING A PLURALITY OF PARASTIC ELEMENTS, A PLURALITY OF IMPEDANCE ELEMENTS, EACH ONE OF SAID PLURALITY OF IMPEDANCE ELEMENTS BEING COUPLED TO A CORRESPONDING ONE OF SAID PLURALITY OF PARASTIC ELEMENTS, EACH OF SAID IMPEDANCE ELEMENTS BEING RESPONSIVE TO A PREDETERMINED FREQUENCY TRANSMITTED BY SAID CENTRAL RADIATING ELEMENT WHEREBY SAID
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |