US3079840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic slide projector
Assignee: G M LAB Inc
•
Filing: 1960-03-07
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Granted: 1963-03-05
•
Expires: 1980-03-07
Abstract
No abstract record available.
Inventors
- 👤 Archie J Mcmaster
- 👤 Karl M Maiershofer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:09
CPC Classifications
G; G03; G03B; G03B23/00; G03B23/02; G03B23/04; G03B23/046
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
IN A SLIDE PROJECTOR, THE COMBINATION COMPRISING: SUPPORT PLATE MEANS DEFINING CAM SLOT MEANS AND A VIEWFRAME; PUSHER ARM MEANS ARRANGED WITH SAID SUPPORT PLATE MEANS, INCLUDING SLIDE BEARING MEANS ADAPTED TO RIDE IN SAID CAM SLOT MEANS, TO COOPERATE IN ARCUATELY TRANSFERRING A SLIDE RECEIVABLE IN A SLIDE TRAY TO AND FROM SAID VIEWING FRAME; CLAMP MEANS CONFRONTING SAID PUSHER ARM MEANS IN VARIABLY SPACED-APART RELATIONSHIP TRANSVERSELY OF SAID SLIDE TRAY FOR SELECTIVE GRIPPING OF A SLIDE THEREBETWEEN; MECHANICAL MEANS OPERABLY CONNECTING SAID PUSHER ARM MEANS AND SAID CLAMP MEANS FOR TRANSPORTING SAID PUSHER ARM MEANS AND SAID CLAMP MEANS AS A RELATIVELY RIGID UNIT WHEN A SLIDE IS GRIPPED THEREBY AND FOR TILTABLE LIFTING OF SAID SLIDE FROM SAID SLIDE TRAY AND TILTABLE REPLACEMENT THEREOF; INDEXING MEANS ON SAID SUPPORT PLATE MEANS ADAPTED TO ADVANCE SAID SLIDE TRAY INCREMENTALLY, SAID INDEXING MEANS DEFINING A STOP ABUTTABLE WITH SAID CLAMP MEANS FOR COCKING-APART SAID CLAMP MEANS AND SAID PUSHER
Claim 2
Dependent Claim
160 words
IN A SLIDE PROJECTOR, THE COMBINATION COMPRISING: SUPPORT PLATE MEANS DEFINING CAM SLOT MEANS AND A VIEWFRAME; PUSHER ARM MEANS ARRANGED WITH SAID SUPPORT PLATE MEANS, INCLUDING SLIDE BEARING MEANS ADAPTED TO RIDE IN SAID CAM SLOT MEANS, TO COOPERATE IN ARCUATELY TRANSFERRING A SLIDE RECEIVABLE IN A SLIDE TRAY TO AND FROM SAID VIEWING FRAME; CLAMP MEANS CONFRONTING SAID PUSHER ARM MEANS IN VARIABLY SPACED-APART RELATIONSHIP TRANSVERSELY OF SAID SLIDE TRAY FOR SELECTIVE GRIPPING OF A SLIDE THEREBETWEEN; MECHANICAL MEANS OPERABLY CONNECTING SAID PUSHER ARM MEANS AND SAID CLAMP MEANS FOR TRANSPORTING SAID PUSHER ARM MEANS AND SAID CLAMP MEANS AS A RELATIVELY RIGID UNIT WHEN A SLIDE IS GRIPPED THEREBY AND FOR TILTABLE LIFTING OF SAID SLIDE FROM SAID SLIDE TRAY AND TILTABLE REPLACEMENT THEREOF; INDEXING MEANS ON SAID SUPPORT PLATE MEANS ADAPTED TO ADVANCE SAID SLIDE TRAY INCREMENTALLY, SAID INDEXING MEANS DEFINING A STOP ABUTTABLE WITH SAID CLAMP MEANS FOR COCKING-APART SAID CLAMP MEANS AND SAID PUSHER
References Cited (Backward Citations)
US1371871A
Cited
US2579281A
Cited
US2898807A
Cited
US2909098A
Cited
FR1158069A
Cited
US2949814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |