Patent US3244069A successfully refreshed from Google Patents.
US3244069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projector with movable light source
Assignee: Charles Beseler Co
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Filing: 1964-05-12
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Granted: 1966-04-05
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Expires: 1984-05-12
Abstract
No abstract record available.
Inventors
- 👤 Philip M Field
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:34
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/132; G03B21/14; G03B21/20; G03B21/2046; Y; Y10; Y10S; Y10S353/00; Y10S353/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
AN OVERHEAD PROJECTOR COMPRISING, (A) A CASE HAVING A HORIZONTAL PROJECTING STAGE, (B) A LAMP DISPOSED WITHIN THE CASE AND CARRIED BY A MOVABLE SUPPORT, (C) A REMOVABLE POST, (D) MEANS FOR SECURING THE POST IN UPRIGHT POSITION ON THE CASE, (E) A PROJECTION HEAD HAVING A FOCUSING LENS AND ARRIED BY THE POST, (F) MEANS FOR POSITIONALLY ADJUSTING SAID HEAD ALONG THE POST, (G) A FIRST OPERATING MEMBER CARRIED BY SAID POST AND MOVABLE LONGITUDINALLY OF THE POST IN CORRESPONDENCE WITH THE POSITIONAL ADJUSTMENT OF THE HEAD ALONG THE POST, (H) A SECOND OPERATING MEMBER DISPOSED WITHIN THE CASE AND MECHANICALLY-COUPLED TO THE SAID MOVABLE SUPPORT, AND (I) COOPERATING COUPLING ELEMENTS CARRIED BY THE TWO OPERATING MEMBERS, WHICH ELEMENTS ARE AUTOMATICALLY COUPLED TOGETHER WHEN THE POST IS SECURED TO THE CASE, THEREBY TO EFFECT MOVEMENT OF THE SAID MOVABLE SUPPORT IN CORRESPONDENCE WITH THE MOVEMENT OF SAID PROJECTION HEAD ALONG THE POST.
Claim 2
Dependent Claim
153 words
AN OVERHEAD PROJECTOR COMPRISING, (A) A CASE HAVING A HORIZONTAL PROJECTING STAGE, (B) A LAMP DISPOSED WITHIN THE CASE AND CARRIED BY A MOVABLE SUPPORT, (C) A REMOVABLE POST, (D) MEANS FOR SECURING THE POST IN UPRIGHT POSITION ON THE CASE, (E) A PROJECTION HEAD HAVING A FOCUSING LENS AND ARRIED BY THE POST, (F) MEANS FOR POSITIONALLY ADJUSTING SAID HEAD ALONG THE POST, (G) A FIRST OPERATING MEMBER CARRIED BY SAID POST AND MOVABLE LONGITUDINALLY OF THE POST IN CORRESPONDENCE WITH THE POSITIONAL ADJUSTMENT OF THE HEAD ALONG THE POST, (H) A SECOND OPERATING MEMBER DISPOSED WITHIN THE CASE AND MECHANICALLY-COUPLED TO THE SAID MOVABLE SUPPORT, AND (I) COOPERATING COUPLING ELEMENTS CARRIED BY THE TWO OPERATING MEMBERS, WHICH ELEMENTS ARE AUTOMATICALLY COUPLED TOGETHER WHEN THE POST IS SECURED TO THE CASE, THEREBY TO EFFECT MOVEMENT OF THE SAID MOVABLE SUPPORT IN CORRESPONDENCE WITH THE MOVEMENT OF SAID PROJECTION HEAD ALONG THE POST.
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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |