US3444558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radomes
Assignee: TECHNICAL APPLIANCE CORP
•
Filing: 1966-07-12
•
Granted: 1969-05-13
•
Expires: 1986-07-12
Abstract
No abstract record available.
Inventors
- 👤 Robert T Leitner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:11
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
IN AN ANTENNA HAVING A RADIATING ELEMENT, A HOUSING HAVING A CLOSURE ELEMENT IN THE SHAPE OF A CURVED CONVEX SHELL OF DIELECTRIC PLASTIC MATERIAL TRANSPARENT TO AND THROUGH WHICH RADIANT ENERGY IS TRANSMITTED, SAID CONVEX CLOSURE ELEMENT HAVING AN APEX AND BEING CHARACTERIZED BY SPACED RADIALLY DISPOSED CORRUGATIONS EMANATING FROM
Claim 2
Dependent Claim
51 words
IN AN ANTENNA HAVING A RADIATING ELEMENT, A HOUSING HAVING A CLOSURE ELEMENT IN THE SHAPE OF A CURVED CONVEX SHELL OF DIELECTRIC PLASTIC MATERIAL TRANSPARENT TO AND THROUGH WHICH RADIANT ENERGY IS TRANSMITTED, SAID CONVEX CLOSURE ELEMENT HAVING AN APEX AND BEING CHARACTERIZED BY SPACED RADIALLY DISPOSED CORRUGATIONS EMANATING FROM
References Cited (Backward Citations)
US3175220A
Cited
US3039100A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |