Patent US3290598A successfully refreshed from Google Patents.
US3290598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave anechoic chamber
Assignee: Individual
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Filing: 1964-09-28
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Granted: 1966-12-06
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Expires: 1984-09-28
Abstract
No abstract record available.
Inventors
- 👤 David W Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:57
CPC Classifications
G; G01; G01R; G01R29/00; G01R29/08; G01R29/10; G01R29/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A MICROWAVE ANECHOIC CHAMBER FOR ACCOMMODATING MEANS FOR PROPAGATING MICROWAVES IN A VARIETY OF AZIMUTHS EITHER SIMULTANEOUSLY OR SUCCESSIVELY, AND A RECEIVER, COMPRISING: A PLURALITY OF SURFACES ASSEMBLED TO DEFINE AN ENCLOSURE; SAID SURFACES BEING GENERALLY ARCUATE IN THE ENCLOSURE AREA WHERE MICROWAVES ARE PROPAGATED AND GENERALLY PLANAR IN THE ENCLOSURE AREA WHERE THE MICROWAVES ARE RECEIVED; AND SAID PROPAGATING MEANS POSITIONABLE ALONG SAID ARCUATE AREA; WHEREBY A QUIET ZONE IS PROVIDED WHICH EXTENDS OVER A WIDE ARC FROM THE RECEIVER THEREBY ENABLING TESTS TO BE MADE FROM A VARIETY OF POSITIONS WITHOUT SIGNIFICANT CHANGE IN THE POWER LEVEL AT THE RECEIVER.
Claim 2
Dependent Claim
102 words
A MICROWAVE ANECHOIC CHAMBER FOR ACCOMMODATING MEANS FOR PROPAGATING MICROWAVES IN A VARIETY OF AZIMUTHS EITHER SIMULTANEOUSLY OR SUCCESSIVELY, AND A RECEIVER, COMPRISING: A PLURALITY OF SURFACES ASSEMBLED TO DEFINE AN ENCLOSURE; SAID SURFACES BEING GENERALLY ARCUATE IN THE ENCLOSURE AREA WHERE MICROWAVES ARE PROPAGATED AND GENERALLY PLANAR IN THE ENCLOSURE AREA WHERE THE MICROWAVES ARE RECEIVED; AND SAID PROPAGATING MEANS POSITIONABLE ALONG SAID ARCUATE AREA; WHEREBY A QUIET ZONE IS PROVIDED WHICH EXTENDS OVER A WIDE ARC FROM THE RECEIVER THEREBY ENABLING TESTS TO BE MADE FROM A VARIETY OF POSITIONS WITHOUT SIGNIFICANT CHANGE IN THE POWER LEVEL AT THE RECEIVER.
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |