US3268907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Position plotting apparatus for use in conjunction with radar
Assignee: AUTOPLOT Ltd
•
Filing: 1963-12-16
•
Granted: 1966-08-23
•
Expires: 1983-12-16
Abstract
No abstract record available.
Inventors
- 👤 Joseph R Parrish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:05
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
APPARATUS FOR RECORDING AND DISPLAY POSITIONAL INFORMATION DERIVED FROM RADAR APPARATUS COMPRISING A FIRST MARKING MEANS, TWO SUPERPOSED PLOTTING SHEETS WITH ONE OF SAID SHEETS BEING FIXED IN RELATION TO SAID FIRST MARKING MEANS, MEANS FOR EFFECTING RELATIVE MOVEMENT BETWEEN SAID SHEETS AT A RATE AND IN A DIRECTION PROPORTIONAL TO THE MOVEMENT OF THE OBSERVING RADAR APPARATUS AND A SECOND MEANS IN ADDITION TO SAID FIRST MARKING MEANS FOR SIMULTANEOUSLY MARKING ON SAID SUPERPOSED SHEETS THE CO-ORDINATES, RELATIVE TO THE OBSERVING RADAR APPARATUS OF SELECTED TARGETS OBSERVED BY THE RADAR APPARATUS.
Claim 2
Dependent Claim
92 words
APPARATUS FOR RECORDING AND DISPLAY POSITIONAL INFORMATION DERIVED FROM RADAR APPARATUS COMPRISING A FIRST MARKING MEANS, TWO SUPERPOSED PLOTTING SHEETS WITH ONE OF SAID SHEETS BEING FIXED IN RELATION TO SAID FIRST MARKING MEANS, MEANS FOR EFFECTING RELATIVE MOVEMENT BETWEEN SAID SHEETS AT A RATE AND IN A DIRECTION PROPORTIONAL TO THE MOVEMENT OF THE OBSERVING RADAR APPARATUS AND A SECOND MEANS IN ADDITION TO SAID FIRST MARKING MEANS FOR SIMULTANEOUSLY MARKING ON SAID SUPERPOSED SHEETS THE CO-ORDINATES, RELATIVE TO THE OBSERVING RADAR APPARATUS OF SELECTED TARGETS OBSERVED BY THE RADAR APPARATUS.
References Cited (Backward Citations)
US2872272A
Cited
US2697827A
Cited
US3090043A
Cited
US3001192A
Cited
US3072908A
Cited
US3067931A
Cited
US3050731A
Cited
US3175221A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |