US3090135A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Land mass simulator
Assignee: ACF Industries Inc
•
Filing: 1959-04-07
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Granted: 1963-05-21
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Expires: 1979-04-07
Abstract
No abstract record available.
Inventors
- 👤 Robert M Eisenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:22
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/40; G01S7/4052; G06; G06E; G06E3/00; G06E3/001; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/40; G01S7/4082
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
95 words
RADAR TRAINING APPARATUS COMPRISING A THREE DIMENSIONAL MODEL OF GROUND TERRAIN, AN OPAQUE PRINT HAVING VARIATIONS THEREON ANALOGOUS TO ELEVATION VARIATIONS IN THE GROUND TERRAIN, FIRST DETECTING MEANS ARRANGED TO VIEW THE SAID MODEL AND TO GENERATE SIGNALS IN RESPONSE TO THE SCENE VIEWED, SECOND DETECTING MEANS ARRANGED TO VIEW THE SAID OPAQUE PRINT AND GENERATE SIGNALS IN RESPONSE TO VARIATIONS IN THE GROUND TERRAIN, AND INDICATING MEANS RESPONSIVE TO THE OUTPUTS OF THE SAID FIRST AND SECOND DETECTING MEANS FOR DISPLAYING A SIMULATED RADAR PRESENTATION OF THE SCENE VIEWED AS MODIFIED BY ELEVATION VARIATIONS.
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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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |