US3415602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal reflection element for micro-sample analysis
Assignee: US Philips Corp
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Filing: 1966-01-14
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Granted: 1968-12-10
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Expires: 1986-01-14
Abstract
No abstract record available.
Inventors
- 👤 Nicolas J Harrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:08
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/55; G01N21/552
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A MULTIPLE PASS INTERNAL REFLECTION ELEMENT COMPRISING A SUBSTANTIALLY OPTICALLY TRANSPARENT MEMBER HAVING A RECEIVING SURFACCE ENABLING AN INCIDENT RADIATION BEAM TO ENTER THE MEMBER AND HAVING A SAMPLING SURFACE ORIENTED RELATIVE TO THE INCIDENT BEAM SO THAT THE LATTER IS INCIDENT THEREON AT AN ANGLE EXCEEDING THE CRITICAL ANGLE FOR TOTAL INTERNAL REFLECTION, SAID MEMBER INCLUDING A PLURALITY OF REFLECTING SURFACES ORIENTED RELATIVE TO THE SAMPLING SURFACE AND FUNCTIONING IN PAIRS TO RECEIVE THE BEAM REFLECTED FROM THE SAMPLING SURFACE AT AN ANGLE EXCEEDING THE CRITICAL ANGLE AND TO REDIRECT IT BACK ONTO SUBSTANTIALLY THE SAME POINT OF THE SAMPLING SURFACE AT AN ANGLE EXCEEDING THE CRITICAL ANGLE, SAID MEMBER HAVING AN EXITING SURFACE ORIENTED RELATIVE TO THE SAMPLING SURFACE TO ENABLE A BEAM INCIDENT ON THE EXISTING SURFACE TO EXIT FROM THE MEMBER.
Claim 2
Dependent Claim
135 words
A MULTIPLE PASS INTERNAL REFLECTION ELEMENT COMPRISING A SUBSTANTIALLY OPTICALLY TRANSPARENT MEMBER HAVING A RECEIVING SURFACCE ENABLING AN INCIDENT RADIATION BEAM TO ENTER THE MEMBER AND HAVING A SAMPLING SURFACE ORIENTED RELATIVE TO THE INCIDENT BEAM SO THAT THE LATTER IS INCIDENT THEREON AT AN ANGLE EXCEEDING THE CRITICAL ANGLE FOR TOTAL INTERNAL REFLECTION, SAID MEMBER INCLUDING A PLURALITY OF REFLECTING SURFACES ORIENTED RELATIVE TO THE SAMPLING SURFACE AND FUNCTIONING IN PAIRS TO RECEIVE THE BEAM REFLECTED FROM THE SAMPLING SURFACE AT AN ANGLE EXCEEDING THE CRITICAL ANGLE AND TO REDIRECT IT BACK ONTO SUBSTANTIALLY THE SAME POINT OF THE SAMPLING SURFACE AT AN ANGLE EXCEEDING THE CRITICAL ANGLE, SAID MEMBER HAVING AN EXITING SURFACE ORIENTED RELATIVE TO THE SAMPLING SURFACE TO ENABLE A BEAM INCIDENT ON THE EXISTING SURFACE TO EXIT FROM THE MEMBER.
References Cited (Backward Citations)
FR1347714A
Cited
US3248671A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |