US3425775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereo projector
Assignee: CCT Cinema Camera Technik AG
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Filing: 1966-10-11
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Granted: 1969-02-04
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Expires: 1986-10-11
Abstract
No abstract record available.
Inventors
- 👤 Jan Louis Wulff Jacobsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:15
CPC Classifications
G; G03; G03B; G03B35/00; G02; G02B; G02B13/00; G02B13/08; G03B35/18; G03B35/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
STEREO PROJECTOR FOR DOUBLE IMAGE FILM BEARING LATERALLY ANAMORPHOTICALLY COMPRESSED IMAGES WITH THE COMPRESSION AT THE LATERAL IMAGE BORDERS GREATER THAN IN THE CENTER, SAID PROJECTOR HAVING OBJECTIVE MEANS INCLUDING REPRODUCING LENSES ARRANGED WITH THEIR OPTICAL AXES AT A DISTANCE FROM ONE ANOTHER CORRESPONDING TO THE DISTANCE BETWEEN THE CENTERS OF THE TWO IMAGES ON THE FILM AND MEANS FOR VIRTUALLY INCREASING THE DISTANCE BETWEEN THE IMAGE CENTERS AND FOR ANAMORPHOTICALLY RESTORING THE IMAGES COMPRISING BREWSTER PRISMS DISPOSED AHEAD OF SAID LENSES.
Claim 2
Dependent Claim
82 words
STEREO PROJECTOR FOR DOUBLE IMAGE FILM BEARING LATERALLY ANAMORPHOTICALLY COMPRESSED IMAGES WITH THE COMPRESSION AT THE LATERAL IMAGE BORDERS GREATER THAN IN THE CENTER, SAID PROJECTOR HAVING OBJECTIVE MEANS INCLUDING REPRODUCING LENSES ARRANGED WITH THEIR OPTICAL AXES AT A DISTANCE FROM ONE ANOTHER CORRESPONDING TO THE DISTANCE BETWEEN THE CENTERS OF THE TWO IMAGES ON THE FILM AND MEANS FOR VIRTUALLY INCREASING THE DISTANCE BETWEEN THE IMAGE CENTERS AND FOR ANAMORPHOTICALLY RESTORING THE IMAGES COMPRISING BREWSTER PRISMS DISPOSED AHEAD OF SAID LENSES.
References Cited (Backward Citations)
US1032172A
Cited
FR462386A
Cited
US1714849A
Cited
US1932082A
Cited
FR1075599A
Cited
US3045542A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |