Patent US3309049A successfully refreshed from Google Patents.
US3309049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stand for projection screen
Assignee: Q Panel Corp
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Filing: 1965-04-19
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Granted: 1967-03-14
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Expires: 1985-04-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Percy Frederick Albee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:12
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/56; G03B21/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A MOUNTING STAND ADAPTED TO BE MAINTAINED IN AN UPRIGHT POSITION UPON A GENERALLY HORIZONTAL SUPPORTING SURFACE COMPRISING A VERTICAL POST, A FIRST COLLAR SLIDABLY MOUNTED ON SAID POST, TWO LEGS PIVOTED TO SAID COLLAR AT AN ANGLE OTHER THAN A STRAIGHT ANGLE, A SECOND COLLAR BELOW AND SPACED FROM THE FIRST COLLAR AND SLIDABLY RECEIVED ON THE POST, A PAIR OF ARMS EACH PIVOTED TO SAID SECOND COLLAR AND TO EACH LEG, AND A STOP MEANS AT THE BASE PORTION OF SAID POST TO LIMIT MOVEMENT OF THE SECOND COLLAR, SAID LEGS AND SAID POST FORMING A THREE-POINT CONTACT WITH A HORIZONTAL SUPPORTING SURFACE.
Claim 2
Dependent Claim
105 words
A MOUNTING STAND ADAPTED TO BE MAINTAINED IN AN UPRIGHT POSITION UPON A GENERALLY HORIZONTAL SUPPORTING SURFACE COMPRISING A VERTICAL POST, A FIRST COLLAR SLIDABLY MOUNTED ON SAID POST, TWO LEGS PIVOTED TO SAID COLLAR AT AN ANGLE OTHER THAN A STRAIGHT ANGLE, A SECOND COLLAR BELOW AND SPACED FROM THE FIRST COLLAR AND SLIDABLY RECEIVED ON THE POST, A PAIR OF ARMS EACH PIVOTED TO SAID SECOND COLLAR AND TO EACH LEG, AND A STOP MEANS AT THE BASE PORTION OF SAID POST TO LIMIT MOVEMENT OF THE SECOND COLLAR, SAID LEGS AND SAID POST FORMING A THREE-POINT CONTACT WITH A HORIZONTAL SUPPORTING SURFACE.
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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |