Patent US3301154A successfully refreshed from Google Patents.
US3301154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereoscopic picture camera and lenticular screen assembly therefor
Assignee: Individual
•
Filing: 1964-12-29
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Granted: 1967-01-31
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Expires: 1984-12-29
Abstract
No abstract record available.
Inventors
- 👤 Russell T Stewart
- 👤 William D Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:06
CPC Classifications
G; G03; G03B; G03B35/00; G03B35/18; G03B35/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
IN A CAMERA APPARATUS FOR TAKING STEROSCOPIC PICTURES, A FORWARD CONDENSING LENS HAVING A LENS APERTURE AT LEAST EQUAL TO THE AVERAGE INTERPUPILLARY DISTANCE, A MAGNIFYING LENS MOUNTED A FIXED DISTANCE REARWARDLY OF THE CONDENSING LENS, A SHUTTER MECHANISM DISPOSED BETWEEN SAID LENSES, ADJUSTABLE LIGHT GATE MEANS DISPOSED BETWEEN THE SHUTTER MECHANISM AND CONDENSING LENS AND OPERABLE TO DEFINE A LIGHT SLIT, A FILM HOLDER SPACED REARWARDLY OF SAID LENSES, SUPPORTING RELATIVELY MOVABLE MEANS FOR THE FILM HOLDER AND SAID LENSES TO ALLOW FOCUSING, AND A SUBSTANTIALLY RIGID UNITARY LENTICULAR SCREEN ASSEMBLY IN THE FILM HOLDER FORWARDLY OF A FILM PLATE THEREIN, SAID SCREEN ASSEMBLY INCLUDING A REAR FLAT FACE ADAPTED TO DIRECTLY CONTACT THE FILM PLATE, A FRONT LENTICULAR FACE REMOTE FROM THE FILM PLATE AND AN INTERNAL PORTION INTERMEDIATE THE REAR AND FRONT FACES CONSISTING OF A MULTIPLI-
Claim 2
Dependent Claim
140 words
IN A CAMERA APPARATUS FOR TAKING STEROSCOPIC PICTURES, A FORWARD CONDENSING LENS HAVING A LENS APERTURE AT LEAST EQUAL TO THE AVERAGE INTERPUPILLARY DISTANCE, A MAGNIFYING LENS MOUNTED A FIXED DISTANCE REARWARDLY OF THE CONDENSING LENS, A SHUTTER MECHANISM DISPOSED BETWEEN SAID LENSES, ADJUSTABLE LIGHT GATE MEANS DISPOSED BETWEEN THE SHUTTER MECHANISM AND CONDENSING LENS AND OPERABLE TO DEFINE A LIGHT SLIT, A FILM HOLDER SPACED REARWARDLY OF SAID LENSES, SUPPORTING RELATIVELY MOVABLE MEANS FOR THE FILM HOLDER AND SAID LENSES TO ALLOW FOCUSING, AND A SUBSTANTIALLY RIGID UNITARY LENTICULAR SCREEN ASSEMBLY IN THE FILM HOLDER FORWARDLY OF A FILM PLATE THEREIN, SAID SCREEN ASSEMBLY INCLUDING A REAR FLAT FACE ADAPTED TO DIRECTLY CONTACT THE FILM PLATE, A FRONT LENTICULAR FACE REMOTE FROM THE FILM PLATE AND AN INTERNAL PORTION INTERMEDIATE THE REAR AND FRONT FACES CONSISTING OF A MULTIPLI-
References Cited (Backward Citations)
US2011263A
Cited
US2049694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |