US3125820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Maiershofer
Assignee: —
•
Filing: —
•
Granted: 1964-03-24
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Expires: 1981-03-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:16
CPC Classifications
G; G03; G03B; G03B23/00; G03B23/02; G03B23/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
IN PHOTOGRAPHIC SLIDE PROJECTION APPARATUS, THE COMBINATION COMPRISING: MEANS DEFINING A SLIDE TRAY TUNNEL; SLIDE TRAY MEANS SLIDABLY RECEIVABLE IN SAID TUNNEL, INCLUDING A PLURALITY OF PARTITIONS DISPOSED IN PARALLEL SPACEDAPART RELATIONSHIP DEFINING INDIVIDUAL SLIDE STALLS; MEANS FOR FEEDING SAID TRAY INCREMENTALLY THROUGH SAID TUNNEL; PUSHER ARM MEANS ARRANGED TO BE EXTENDED AND RETRACTED TRANSVERSELY OF SAID TUNNEL FOR TRANSPORTING A SLIDE RELATIVE TO A SAID STALL AND HAVING A PREDETERMINED THICKNESS LONGITUDINALLY OF SAID TUNNEL; AND A PAIR OF SPACED ROLLERS, EACH DEFINING A CURVED SURFACE FOR CONTACTING ADJACENT PARTITIONS OF SAID TRAY, SO CONSTRUCTED AND ARRANGED AS RELEASABLY TO POSITION SAID TRAY IN SAID ROLLER TUNNEL, SAID CURVED SURFACES BEING FURTHER DISPOSED ON OPPOSITE SIDES OF SAID PUSHER ARM MEANS AND SPACED APART SUBSTANTIALLY BY SAID PREDETERMINED THICKNESS WHEREBY TO GUIDE SAID ARM MEANS INTO A SAID STALL.
Claim 2
Dependent Claim
140 words
IN PHOTOGRAPHIC SLIDE PROJECTION APPARATUS, THE COMBINATION COMPRISING: MEANS DEFINING A SLIDE TRAY TUNNEL; SLIDE TRAY MEANS SLIDABLY RECEIVABLE IN SAID TUNNEL, INCLUDING A PLURALITY OF PARTITIONS DISPOSED IN PARALLEL SPACEDAPART RELATIONSHIP DEFINING INDIVIDUAL SLIDE STALLS; MEANS FOR FEEDING SAID TRAY INCREMENTALLY THROUGH SAID TUNNEL; PUSHER ARM MEANS ARRANGED TO BE EXTENDED AND RETRACTED TRANSVERSELY OF SAID TUNNEL FOR TRANSPORTING A SLIDE RELATIVE TO A SAID STALL AND HAVING A PREDETERMINED THICKNESS LONGITUDINALLY OF SAID TUNNEL; AND A PAIR OF SPACED ROLLERS, EACH DEFINING A CURVED SURFACE FOR CONTACTING ADJACENT PARTITIONS OF SAID TRAY, SO CONSTRUCTED AND ARRANGED AS RELEASABLY TO POSITION SAID TRAY IN SAID ROLLER TUNNEL, SAID CURVED SURFACES BEING FURTHER DISPOSED ON OPPOSITE SIDES OF SAID PUSHER ARM MEANS AND SPACED APART SUBSTANTIALLY BY SAID PREDETERMINED THICKNESS WHEREBY TO GUIDE SAID ARM MEANS INTO A SAID STALL.
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) | 1967-03-24 | 1967-09-23 | 1968-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-24 | 1971-09-23 | 1972-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-24 | 1975-09-23 | 1976-03-24 | $7700.00 | Window Closed / Lapsed |