US3137170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared telethermometer
Assignee: Barnes Engineering Co
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Filing: 1960-06-23
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Granted: 1964-06-16
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Expires: 1980-06-23
Abstract
No abstract record available.
Inventors
- 👤 Robert W Astheimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:59
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A DEVICE FOR MEASURING THE RADIATIONS OF A DISTANT OBJECT RESULTING FROM THE OBJECT''S TEMPERATURE COMPRISING IN COMBINATION AND OPTICAL ALIGNMENT, (A) AN OPTICAL SYSTEM HAVING AN ENTRANCE PUPIL AND AN OBJECTIVE, (B) FILTERING MEANS PASSING AT LEAST ONE NARROW BAND OF OPTICAL RADIATION AND ANOTHER BAND, (C) A PAIR OF RADIATION DETECTORS CONNECTED IN A BRIDGE CIRCUIT AND DETECTING RADIATION BY CHANGE IN RESISTANCE, SAID DETECTORS LYING SIDE BY SIDE AND IN THE SAME PLANE,
Claim 2
Independent Claim
76 words
A DEVICE FOR MEASURING THE RADIATIONS OF A DISTANT OBJECT RESULTING FROM THE OBJECT''S TEMPERATURE COMPRISING IN COMBINATION AND OPTICAL ALIGNMENT, (A) AN OPTICAL SYSTEM HAVING AN ENTRANCE PUPIL AND AN OBJECTIVE, (B) FILTERING MEANS PASSING AT LEAST ONE NARROW BAND OF OPTICAL RADIATION AND ANOTHER BAND, (C) A PAIR OF RADIATION DETECTORS CONNECTED IN A BRIDGE CIRCUIT AND DETECTING RADIATION BY CHANGE IN RESISTANCE, SAID DETECTORS LYING SIDE BY SIDE AND IN THE SAME PLANE,
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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |