Patent US2831120A successfully refreshed from Google Patents.
US2831120A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism for quantitative measurment of fluorescence
Assignee: MENLO RES LAB
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Filing: 1953-04-07
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Granted: 1958-04-15
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Expires: 1973-04-07
Abstract
No abstract record available.
Inventors
- 👤 Weeks Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:02
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/16; G01T1/20; G01T1/2004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
237 words
A DEVICE FOR USE IN EXAMINING SPECIMENS EXPOSED TO RADIATION, SAID DEVICE COMPRISING: A HOUSING HAVING MEANS THEREIN FOR RECEIVING AN UNKNOWN SPECIMEN, THE HOUSING INCLUDING MEANS DEFINING A RECEPTACLE HAVING A CYLINDRICAL WALL PORTION WITH AN ARCUATE WIDOW THEREIN OPENING INTO THE HOUSING AND IN CLOSE PROXIMITY OT AND CONFRONTING SAID RECEIVING MEANS, SAID RECEIVING MEANS LYING OUTSIDE OF SAID CYLINDRICAL WALL PORTION, A TURRET ROTATABLY MOUNTED IN SAID RECEPTACLE CONCENTRICALLY OF SAID CYLINDRICAL WALL PORTION, SAID TURRET HAVING A PLURALITY OF GENERALLY RADIALLY EXTENDING WALLS WHICH EXTEND IN CLOSE LIGHT BLOCKING RELATION TO SAID CYLINDRICAL WALL PORTION, AND ADJACENT PAIRS OF SAID WALLS BEING ARCUATELY SPACED SUBSTANTIALLY THE SAME DISTANCE AS THE ARCUATE LENGTH OF SAID ARCUATE WINDOW, WHEREBY ONLY ONE SPACE BETWEEN A PAIR OF SAID RADIAL WALLS MAY BE ALIGNED AT ANY ONE TIME WITH SAID ARCUATE WINDOW, THE SPACE BETWEEN EACH ADJACENT PAIR OF RADIAL WALLS CONSTITUTING A WELL ADAPTED TO RECEIVE A KNOWN SPECIMEN, SAID TURRET WITH SAID RADIALLY EXTENDING WALLS AND SAID CYLINDRICAL WALL WITH SAID ARCUATE WINDOW COOPERATING TO EXPOSE ONLY SINGLE KNOWN SPECIMEN IN ADJACENT, ALIGNED RELATION WITH AN UNKNOWN SPECIMEN WHILE SIMULTANEOUSLY SHEILDING ALL OTHER KNOWN SPECIMEN CARRIED BY SAID TURRET, MEANS TO RADIATE ULTRAVIOLET RADIATION ONTO SAID SINGLE KNOWN SPECIMEN AND SAID UNKNOWN SPECIMEN, AND MEANS DEFINING AN OPENING IN SAID UNKNOWN SPECIMEN, WHICH THE UNKNOWN SPECIMEN AND THE ADJACENT, ALIGNED SPECIMEN MAY BE STIMULTANEOUSLY VIEWED.
Claim 2
Independent Claim
237 words
A DEVICE FOR USE IN EXAMINING SPECIMENS EXPOSED TO RADIATION, SAID DEVICE COMPRISING: A HOUSING HAVING MEANS THEREIN FOR RECEIVING AN UNKNOWN SPECIMEN, THE HOUSING INCLUDING MEANS DEFINING A RECEPTACLE HAVING A CYLINDRICAL WALL PORTION WITH AN ARCUATE WIDOW THEREIN OPENING INTO THE HOUSING AND IN CLOSE PROXIMITY OT AND CONFRONTING SAID RECEIVING MEANS, SAID RECEIVING MEANS LYING OUTSIDE OF SAID CYLINDRICAL WALL PORTION, A TURRET ROTATABLY MOUNTED IN SAID RECEPTACLE CONCENTRICALLY OF SAID CYLINDRICAL WALL PORTION, SAID TURRET HAVING A PLURALITY OF GENERALLY RADIALLY EXTENDING WALLS WHICH EXTEND IN CLOSE LIGHT BLOCKING RELATION TO SAID CYLINDRICAL WALL PORTION, AND ADJACENT PAIRS OF SAID WALLS BEING ARCUATELY SPACED SUBSTANTIALLY THE SAME DISTANCE AS THE ARCUATE LENGTH OF SAID ARCUATE WINDOW, WHEREBY ONLY ONE SPACE BETWEEN A PAIR OF SAID RADIAL WALLS MAY BE ALIGNED AT ANY ONE TIME WITH SAID ARCUATE WINDOW, THE SPACE BETWEEN EACH ADJACENT PAIR OF RADIAL WALLS CONSTITUTING A WELL ADAPTED TO RECEIVE A KNOWN SPECIMEN, SAID TURRET WITH SAID RADIALLY EXTENDING WALLS AND SAID CYLINDRICAL WALL WITH SAID ARCUATE WINDOW COOPERATING TO EXPOSE ONLY SINGLE KNOWN SPECIMEN IN ADJACENT, ALIGNED RELATION WITH AN UNKNOWN SPECIMEN WHILE SIMULTANEOUSLY SHEILDING ALL OTHER KNOWN SPECIMEN CARRIED BY SAID TURRET, MEANS TO RADIATE ULTRAVIOLET RADIATION ONTO SAID SINGLE KNOWN SPECIMEN AND SAID UNKNOWN SPECIMEN, AND MEANS DEFINING AN OPENING IN SAID UNKNOWN SPECIMEN, WHICH THE UNKNOWN SPECIMEN AND THE ADJACENT, ALIGNED SPECIMEN MAY BE STIMULTANEOUSLY VIEWED.
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) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |