US3002190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple sandwich broad band radome
Assignee: Zenith Plastics Co
•
Filing: 1955-04-15
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Granted: 1961-09-26
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Expires: 1975-04-15
Abstract
No abstract record available.
Inventors
- 👤 Samuel S Oleesky
- 👤 Charles E Peach
- 👤 Gerald B Speen
- 👤 Donald H Mcclure
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:08
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/42; H01Q1/422; H01Q1/424
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A DIELECTRIC WALL FOR THE TRANSMISSION OF A MAJOR PROPORTION OF ELECTROMAGNETIC ENERGY TRANSVERSELY THERETHROUGH OVER A BROAD BAND OF FREQUENCIES COMPRISING AN OUTERMOST SKIN LAYER OF MATERIAL HAVING A DIELECTRIC CONSTANT OF FROM 3.5 TO 4.5 AND A THICKNESS OF FROM 0.01 TO 0.02 INCH, AN INWARDLY ADJACENT CORE LAYER OF MATERIAL HAVING A DIELECTRIC CONSTANT OF FROM 1.05 TO 1.4 AND A
Claim 2
Dependent Claim
64 words
A DIELECTRIC WALL FOR THE TRANSMISSION OF A MAJOR PROPORTION OF ELECTROMAGNETIC ENERGY TRANSVERSELY THERETHROUGH OVER A BROAD BAND OF FREQUENCIES COMPRISING AN OUTERMOST SKIN LAYER OF MATERIAL HAVING A DIELECTRIC CONSTANT OF FROM 3.5 TO 4.5 AND A THICKNESS OF FROM 0.01 TO 0.02 INCH, AN INWARDLY ADJACENT CORE LAYER OF MATERIAL HAVING A DIELECTRIC CONSTANT OF FROM 1.05 TO 1.4 AND A
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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) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |