US3227873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared detector and method utilizing a gas of small molecular size to be diffused into the detector
Assignee: Beckman Coulter Inc
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Filing: 1962-10-30
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Granted: 1966-01-04
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Expires: 1982-10-30
Abstract
No abstract record available.
Inventors
- 👤 Max D Liston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:06
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/31; G01N21/35; G01N21/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A METHOD OF IMPROVING THE OPERATION OF AN INFRARED DETECTOR BY SUBSTANTIALLY FILLING THE PORES OF SAID DETECTOR COMPRISING THE STEPS OF MIXING A CHARGING BLEND CONTAINING AT LEAST A PORTION OF A GAS TO BE DETECTED, AND CONTAINING APPROXIMATELY 10%, RELATIVE TO THE TOTAL BLEND, OF A GAS OF SMALL MOLECULAR SIZE, FILLING SAID DETECTOR TO A PREDETERMINED PRESSURE WITH SAID CHARGING BLEND OF GAS, AND SEALING SAID DETECTOR.
Claim 2
Independent Claim
70 words
A METHOD OF IMPROVING THE OPERATION OF AN INFRARED DETECTOR BY SUBSTANTIALLY FILLING THE PORES OF SAID DETECTOR COMPRISING THE STEPS OF MIXING A CHARGING BLEND CONTAINING AT LEAST A PORTION OF A GAS TO BE DETECTED, AND CONTAINING APPROXIMATELY 10%, RELATIVE TO THE TOTAL BLEND, OF A GAS OF SMALL MOLECULAR SIZE, FILLING SAID DETECTOR TO A PREDETERMINED PRESSURE WITH SAID CHARGING BLEND OF GAS, AND SEALING SAID DETECTOR.
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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |