US3072011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interferometer optical system
Assignee: General Precision Inc
•
Filing: 1957-05-24
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Granted: 1963-01-08
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Expires: 1977-05-24
Abstract
No abstract record available.
Inventors
- 👤 Harold S Hemstreet
- 👤 Robert A Woodson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:01
CPC Classifications
G; G01; G01B; G01B9/00; G01B9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
AN INTERFEROMETER COMPRISING A SOURCE PROVIDING A LIGHT BEAM, BEAM SPLITTING MEANS PLACED IN SAID LIGHT BEAM FOR SPLITTING SAID BEAM INTO TWO PARALLEL LIGHT BEAMS, MOUNT MEANS FOR POSITIONING AN OPTICAL REFLECTING MEANS TO BE TESTED, SAID OPTICAL REFLECTIVE MEANS BEING LOCATED AND ORIENTABLE SUCH THAT THE PARALLEL LIGHT BEAMS ARE EACH SUCCESSIVELY INCIDENT ON AND REFLECTED FROM EACH OF ITS REFLECTIVE SURFACES BEFORE BEING DIRECTED BACK TOWARD SAID BEAM SPLITTER MEANS OVER THE PATH OF THE OTHER INCIDENT PARALLEL LIGHT BEAM, SAID REFLECTED LIGHT BEAMS BEING RECOMBINED ON SAID BEAM SPLITTER FORMING OVERLAPPING IMAGES OF SAID REFLECTING MEANS, THE AREA OF OVERLAP INCLUDING FRINGE PATTERNS COMMENSURATE WITH AN BENDING OF THE LIGHT RAYS IN THE SPLIT LIGHT BEAMS
Claim 2
Dependent Claim
120 words
AN INTERFEROMETER COMPRISING A SOURCE PROVIDING A LIGHT BEAM, BEAM SPLITTING MEANS PLACED IN SAID LIGHT BEAM FOR SPLITTING SAID BEAM INTO TWO PARALLEL LIGHT BEAMS, MOUNT MEANS FOR POSITIONING AN OPTICAL REFLECTING MEANS TO BE TESTED, SAID OPTICAL REFLECTIVE MEANS BEING LOCATED AND ORIENTABLE SUCH THAT THE PARALLEL LIGHT BEAMS ARE EACH SUCCESSIVELY INCIDENT ON AND REFLECTED FROM EACH OF ITS REFLECTIVE SURFACES BEFORE BEING DIRECTED BACK TOWARD SAID BEAM SPLITTER MEANS OVER THE PATH OF THE OTHER INCIDENT PARALLEL LIGHT BEAM, SAID REFLECTED LIGHT BEAMS BEING RECOMBINED ON SAID BEAM SPLITTER FORMING OVERLAPPING IMAGES OF SAID REFLECTING MEANS, THE AREA OF OVERLAP INCLUDING FRINGE PATTERNS COMMENSURATE WITH AN BENDING OF THE LIGHT RAYS IN THE SPLIT LIGHT BEAMS
References Cited (Backward Citations)
GB555672A
Cited
US2481551A
Cited
US2583596A
Cited
US2571937A
Cited
US2545340A
Cited
US2693735A
Cited
US2795991A
Cited
DE950413C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |