US3148583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projector
Assignee: G M LAB Inc
•
Filing: 1961-04-25
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Granted: 1964-09-15
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Expires: 1981-04-25
Abstract
No abstract record available.
Inventors
- 👤 Maiershofer Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:47
CPC Classifications
G; G03; G03B; G03B21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
IN A PORTABLE PICTURE PROJECTOR, THE COMBINATION OF A HOUSING, PICTURE PROJECTING MEANS IN SAID HOUSING, CUPPORT MEANS MOUNTED FROM SAID HOUSING DEFINING A PAIR OF LATERALLY SPACED SUPPORT ELEMENT GUIDES IN A COMMON VERTICAL PLANE, A PAIR OF ELONGATED SUPPORT ELEMENTS GUIDED BY SAID GUIDES FOR VERTICAL ADJUSTMENT WITH RESPECT TO SAID HOUSING AND EXTENDING DOWNWARDLY TO PROVIDE ADJUSTABLE SUPPORT FOR THE HOUSING, EACH OF SAID SUPPORT ELEMENTS BEING FORMED TO PROVIDE A SERIES OF DISCONNECTED ANNULAR GROOVES CLOSELY SPACED LONGITUDINALLY ALONG THE SUPPORT ELEMENT AND DEFINING UPWARDLY FACING SUBSTANTIALLY HORIZONTAL ABUTMENT SURFACES DISPOSED AT A GENERALLY PERPENDICULAR ANGLE TO THE AXIS OF THE SUPPORT ELEMENT, A SINGLE RESILIENT DETENT PLATE SECURED TO SAID SUPPORT MEANS SUBSTANTIALLY PARALLEL TO SAID COMMON VERTICAL PLANE AND HAVING SUBSTANTIALLY RIGHT ANGULARLY DISPOSED LIP MEANS THEREON IN
Claim 2
Dependent Claim
134 words
IN A PORTABLE PICTURE PROJECTOR, THE COMBINATION OF A HOUSING, PICTURE PROJECTING MEANS IN SAID HOUSING, CUPPORT MEANS MOUNTED FROM SAID HOUSING DEFINING A PAIR OF LATERALLY SPACED SUPPORT ELEMENT GUIDES IN A COMMON VERTICAL PLANE, A PAIR OF ELONGATED SUPPORT ELEMENTS GUIDED BY SAID GUIDES FOR VERTICAL ADJUSTMENT WITH RESPECT TO SAID HOUSING AND EXTENDING DOWNWARDLY TO PROVIDE ADJUSTABLE SUPPORT FOR THE HOUSING, EACH OF SAID SUPPORT ELEMENTS BEING FORMED TO PROVIDE A SERIES OF DISCONNECTED ANNULAR GROOVES CLOSELY SPACED LONGITUDINALLY ALONG THE SUPPORT ELEMENT AND DEFINING UPWARDLY FACING SUBSTANTIALLY HORIZONTAL ABUTMENT SURFACES DISPOSED AT A GENERALLY PERPENDICULAR ANGLE TO THE AXIS OF THE SUPPORT ELEMENT, A SINGLE RESILIENT DETENT PLATE SECURED TO SAID SUPPORT MEANS SUBSTANTIALLY PARALLEL TO SAID COMMON VERTICAL PLANE AND HAVING SUBSTANTIALLY RIGHT ANGULARLY DISPOSED LIP MEANS THEREON IN
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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |