US3287556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser long-path infrared multiwave-length absorption spectrometer
Assignee: Textron Inc
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Filing: 1963-12-02
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Granted: 1966-11-22
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Expires: 1983-12-02
Abstract
No abstract record available.
Inventors
- 👤 James L Good
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:27
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/31; G01N21/39
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A LONG-PATH INFRARED DIFFERENTIAL ABSORPTION SPECTROMETER COMPRISING A LASER GENERATING AN INFRARED RADIATION BEAM HAVING A PLURALITY OF PREDETERMINEDL CONSTITUENT WAVELENGTHS, ELECTRONIC MODULATING MEANS COUPLED TO SAID LASER TO MODULATE SAID BEAM, A RETRODIRECTIVE REFLECTOR SPATIALLY SEPARATED FROM SAID LASER, TRANSMITTING OPTICAL MEANS FOR DIRECTING SAID BEAM THROUGH SPACE UPON SAID REFLECTOR, RECEIVING OPTICAL MEANS RECEIVING A RETURN BEAM FROM SAID REFLECTOR, OPTICAL BEAM SPLITTER MEANS ASSOCIATED WITH SAID RECEIVING OPTICAL MEANS SEPARTING SAID RETURN BEAM INTO ITS CONSTITUENT WAVELENGTHS, INFRARED RADIATION DETECTOR MEANS RECEIVING THE RESPECTIVE CONSTITUENT WAVE-
Claim 2
Dependent Claim
89 words
A LONG-PATH INFRARED DIFFERENTIAL ABSORPTION SPECTROMETER COMPRISING A LASER GENERATING AN INFRARED RADIATION BEAM HAVING A PLURALITY OF PREDETERMINEDL CONSTITUENT WAVELENGTHS, ELECTRONIC MODULATING MEANS COUPLED TO SAID LASER TO MODULATE SAID BEAM, A RETRODIRECTIVE REFLECTOR SPATIALLY SEPARATED FROM SAID LASER, TRANSMITTING OPTICAL MEANS FOR DIRECTING SAID BEAM THROUGH SPACE UPON SAID REFLECTOR, RECEIVING OPTICAL MEANS RECEIVING A RETURN BEAM FROM SAID REFLECTOR, OPTICAL BEAM SPLITTER MEANS ASSOCIATED WITH SAID RECEIVING OPTICAL MEANS SEPARTING SAID RETURN BEAM INTO ITS CONSTITUENT WAVELENGTHS, INFRARED RADIATION DETECTOR MEANS RECEIVING THE RESPECTIVE CONSTITUENT WAVE-
References Cited (Backward Citations)
US2930893A
Cited
US3004664A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |