US3243784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave process and apparatus
Assignee: Northrop Grumman Guidance and Electronics Co Inc
•
Filing: 1960-12-05
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Granted: 1966-03-29
•
Expires: 1980-12-05
Abstract
No abstract record available.
Inventors
- 👤 Harold C Anderson
- 👤 Kenneth E Peltzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:27
CPC Classifications
G; G11; G11B; G11B11/00; G11B11/10; G11B11/11; H; H04; H04N; H04N1/00; H04N1/23; H04N5/00; H04N5/76
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A PROCESS FOR PRODUCING A VISUAL IMAGE OF A HIGH FREQUENCY ELECTROMAGNETIC WAVE ON A RECORD MEMBER COMPRISING THE STEPS OF: DISPENSING A PARAMAGNETIC MATERIAL OVER A RELATIVELY WIDE SURFACE AREA, SAID MATERIAL HAVING SUBATOMIC RESONANT REGIONS THEREIN, TUNING SAID REGIONS TO RESONANT ABSORPTION FREQUENCY BY SUBJECTING THE MATERIAL TO A STATIC FIELD HAVING AN INTENSITY PROPORTIONAL TO THE RESONANT FREQUENCY DESIRED ACCORDING TO THE ZEEMAN ENERGY RELATIONSHIP, EXPOSING SAID TUNED SURFACE AREA TO THE ELECTROMAGNETIC WAVE TO BE RECORDED WHEREBY THOSE REGIONS THAT ARE TUNED TO THE FREQUENCY OF THE WAVE ARE HEATED BY ABSORPTION OF ENERGY FROM THE WAVE TO PRODUCE A HEAT IMAGE OF THE WAVE OVER THE SURFACE, AND CONVERTING THE HEAT IMAGE TO A VISIBLE IMAGE, THE STEP OF DISPERSING THE PARAMAGNETIC MATERIAL BEING PERFORMED BY ENCLOSING SMALL PORTIONS OF THE MATERIAL WITHIN INDIVIDUAL CAPSULES OF HEAT RELEASABLE MATERIAL AND DISPERSING SAID CAPSULES OVER THE SURFACE.
Claim 2
Dependent Claim
151 words
A PROCESS FOR PRODUCING A VISUAL IMAGE OF A HIGH FREQUENCY ELECTROMAGNETIC WAVE ON A RECORD MEMBER COMPRISING THE STEPS OF: DISPENSING A PARAMAGNETIC MATERIAL OVER A RELATIVELY WIDE SURFACE AREA, SAID MATERIAL HAVING SUBATOMIC RESONANT REGIONS THEREIN, TUNING SAID REGIONS TO RESONANT ABSORPTION FREQUENCY BY SUBJECTING THE MATERIAL TO A STATIC FIELD HAVING AN INTENSITY PROPORTIONAL TO THE RESONANT FREQUENCY DESIRED ACCORDING TO THE ZEEMAN ENERGY RELATIONSHIP, EXPOSING SAID TUNED SURFACE AREA TO THE ELECTROMAGNETIC WAVE TO BE RECORDED WHEREBY THOSE REGIONS THAT ARE TUNED TO THE FREQUENCY OF THE WAVE ARE HEATED BY ABSORPTION OF ENERGY FROM THE WAVE TO PRODUCE A HEAT IMAGE OF THE WAVE OVER THE SURFACE, AND CONVERTING THE HEAT IMAGE TO A VISIBLE IMAGE, THE STEP OF DISPERSING THE PARAMAGNETIC MATERIAL BEING PERFORMED BY ENCLOSING SMALL PORTIONS OF THE MATERIAL WITHIN INDIVIDUAL CAPSULES OF HEAT RELEASABLE MATERIAL AND DISPERSING SAID CAPSULES OVER THE SURFACE.
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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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |