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Patent US3286590A successfully refreshed from Google Patents.
US3286590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Full circumferential viewing system
Assignee: Conductron Corp
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Filing: 1965-03-03
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Granted: 1966-11-22
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Expires: 1985-03-03
Abstract
No abstract record available.
Inventors
- 👤 Harry P Brueggemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:47
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/02; G02B23/08; G02B13/00; G02B13/06; G02B19/00; G02B19/0004; G02B19/0019; G02B19/0023; G02B19/0033; G02B19/0038; G02B27/00; G02B27/01; G02B27/0101; G03; G03B; G03B15/00; G03B15/14; G03B17/00; G03B17/02; G03B17/17; G03B37/00; G02B2027/011; G02B2027/0123; G02B2027/0138; G02B5/00; G02B5/08; G02B5/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A PROJECTOR FOR DISPLAYING A FULL CIRCUMFERENTIAL VIEW FROM PANORAMIC IMAGE RECORDED ON A PHOTOGRAPHIC FILM COMPRISING: AN ELLIPTICAL MIRROR, THE CONCAVE SIDE OF WHICH HAS A SPECULAR SURFACE; A FIRST SPHERICAL MIRROR, THE AXIS OF WHICH IS DISPOSED AT RIGHT ANGLES TO THE AXIS OF SAID ELLIPTICAL MIRROR, THE CONCAVE SIDE OF SAID SHPERICAL MIRROE HAVING A SPECULAR SURFACE; A SECOND SPHERICSAL MIRROR COAXIALLY ALIGNED WITH, AND SPACED APART FROM, SAID ELLIPTICAL MIRROR, THE CONVEX SIDE OF SAID SECOND SPHERICAL MIRROR HAVING A SPECULAR SURFACE; BEAM SPLITTER MEANS DISPOSED AT THE INTERSECTION OF THE AXES OF SAID FIRST AND SECOND SPHERICAL MIRRORS AND INCLINED 45* TO THE AXIS OF SAID ELLIPTICAL MIRROR, SAID PHOTOGRAPHIC FILM BEING LATERALLY DISPLACED FROM SAID BEAM SPLITTER MEANS AND LYING IN A PLANE NORMAL TO THE OPTIC AXIS AS DEVIATED BY SAID BEAM SPLITTER MEANS; A PROJECTION LIGHT SOURCE FOR ILLUMINATING SAID PHOTOGRAPHIC FILM; AND CONDENSER LENS MEANS INTERPOSED BETWEEN SAID PHOTOGRAPHIC FILM AND SAID LIGHT SOURCE MEANS FOR COLLIMATING LIGHT FROM SAID SOURCE FOR ILLUMINATING SAID PHOTOGRAPHIC FILM.
Claim 2
Dependent Claim
175 words
A PROJECTOR FOR DISPLAYING A FULL CIRCUMFERENTIAL VIEW FROM PANORAMIC IMAGE RECORDED ON A PHOTOGRAPHIC FILM COMPRISING: AN ELLIPTICAL MIRROR, THE CONCAVE SIDE OF WHICH HAS A SPECULAR SURFACE; A FIRST SPHERICAL MIRROR, THE AXIS OF WHICH IS DISPOSED AT RIGHT ANGLES TO THE AXIS OF SAID ELLIPTICAL MIRROR, THE CONCAVE SIDE OF SAID SHPERICAL MIRROE HAVING A SPECULAR SURFACE; A SECOND SPHERICSAL MIRROR COAXIALLY ALIGNED WITH, AND SPACED APART FROM, SAID ELLIPTICAL MIRROR, THE CONVEX SIDE OF SAID SECOND SPHERICAL MIRROR HAVING A SPECULAR SURFACE; BEAM SPLITTER MEANS DISPOSED AT THE INTERSECTION OF THE AXES OF SAID FIRST AND SECOND SPHERICAL MIRRORS AND INCLINED 45* TO THE AXIS OF SAID ELLIPTICAL MIRROR, SAID PHOTOGRAPHIC FILM BEING LATERALLY DISPLACED FROM SAID BEAM SPLITTER MEANS AND LYING IN A PLANE NORMAL TO THE OPTIC AXIS AS DEVIATED BY SAID BEAM SPLITTER MEANS; A PROJECTION LIGHT SOURCE FOR ILLUMINATING SAID PHOTOGRAPHIC FILM; AND CONDENSER LENS MEANS INTERPOSED BETWEEN SAID PHOTOGRAPHIC FILM AND SAID LIGHT SOURCE MEANS FOR COLLIMATING LIGHT FROM SAID SOURCE FOR ILLUMINATING SAID PHOTOGRAPHIC FILM.
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |