US3106642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared search and tracking system comprising a plurality of detectors
Assignee: ACF Industries Inc
•
Filing: 1959-01-29
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Granted: 1963-10-08
•
Expires: 1979-01-29
Abstract
No abstract record available.
Inventors
- 👤 Shapiro Sol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:35
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/78; G01S3/782; G01S3/787
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
AN INFRA-RED DETECTING SYSTEM COMPRISING AN INFRARED SENSITIVE DEVICE INCLUDING A PLURALITY OF PHOTOSENSITIVE CELLS, MEANS FOR DIRECTING INFRA-RED RADIATION ONTO EACH ONE OF SAID CELLS, MEANS FOR CHOPPING AT DIFFERENT PREDETERMINED FREQUENCIES INFRA-RED RADIATIONS DIRECTED ONTO SAID CELLS, AN ELECTRIC CIRCUIT MEANS CONNECTED TO SAID CELLS FOR PROVIDING AMPLIFIED ELECTRICAL SIGNALS HAVING
Claim 2
Dependent Claim
53 words
AN INFRA-RED DETECTING SYSTEM COMPRISING AN INFRARED SENSITIVE DEVICE INCLUDING A PLURALITY OF PHOTOSENSITIVE CELLS, MEANS FOR DIRECTING INFRA-RED RADIATION ONTO EACH ONE OF SAID CELLS, MEANS FOR CHOPPING AT DIFFERENT PREDETERMINED FREQUENCIES INFRA-RED RADIATIONS DIRECTED ONTO SAID CELLS, AN ELECTRIC CIRCUIT MEANS CONNECTED TO SAID CELLS FOR PROVIDING AMPLIFIED ELECTRICAL SIGNALS HAVING
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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) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |