Patent US3336832A successfully refreshed from Google Patents.
US3336832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical system for measuring twist
Assignee: Individual
•
Filing: 1962-08-09
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Granted: 1967-08-22
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Expires: 1982-08-09
Abstract
No abstract record available.
Inventors
- 👤 Benjamin L Snavely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:35
CPC Classifications
G; G01; G01B; G01B11/00; G01B11/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
117 words
IN A SYSTEM FOR MEASURING RELATIVE ANGULAR ROTATION ABOUT AN AXIS EXTENDING BETWEEN TWO STATIONS, A POLARIZED LIGHT BEAM SOURCE POSITIONED AT ONE STATION, POLARIZING PRISM MEANS AT THE OTHER STATION HAVING AREAS OF DIVERSE ANGLES OF POLARIZATION FOR RECEIVING POLARIZED LIGHT FROM SAID SOURCE AND NORMALLY PASSING A BEAM OF POLARIZED LIGHT THERETHROUGH OF UNIFORM INTENSITY THROUGHOUT ITS CROSS-SECTION WHEN STATIONS ARE IN A PREDETERMINED RELATIVE ANGULAR POSITION AND FOR PASSING A BEAM OF POLARIZED LIGHT OF NON-UNIFORM INTENSITY THROUGHOUT ITS CROSS-SECTION WHEN THE STATIONS ARE DISPLACED FROM THEIR PREDETERMINED RELATIVE POSITIONS, A LIGHT BAFFLE HAVING AN APERTURE THEREIN OF SMALLER CROSS-SECTION THAN SAID BEAM, A MIRROR POSITIONED IN THE PATH OF SAID BEAM BETWEEN THE
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) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |