Patent US3108657A successfully refreshed from Google Patents.
US3108657A
Expired / Lapsed
US
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Scaffold device
Assignee: STAIR N FOLD CO
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Filing: 1960-05-09
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Granted: 1963-10-29
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Expires: 1980-05-09
Abstract
No abstract record available.
Inventors
- 👤 Swan O Carlson
- 👤 Irma E Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:04
CPC Classifications
E; E04; E04G; E04G1/00; E04G1/24; E04G2001/242
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN A SCAFFOLD DEVICE, OPPOSITELY DISPOSED VERTICAL END PORTIONS, BRACE MEMBERS CONNECTING SAID END PORTIONS, HINGE MEANS PIVOTALLY CONNECTING SAID BRACES TO SAID END PORTIONS, MEANS ON SAID END PORTIONS FOR SUPPORTING A PLURALITY OF PLANKS THEREBETWEEN. A FRAME DETACHABLY MOUNTED ON ONE OF SAID END PORTIONS, POSTS ON SAID FRAME EXTENDING BELOW THE BOTTOM OF THE END PORTION TO WHICH IT IS MOUNTED TO ELEVATE SAID END PORTION FROM A SUPPORTING SURFACE, SAID POSTS BEING RIGIDLY SECURED TOGETHER THROUGH SAID FRAME WHEREBY EACH POST WILL BE FREE FROM DISPLACEMENT BY ANY UPWARD VERTICAL PRESSURE ON THE LOWER END OF ANY OF THE OTHER OF SAID POSTS, AND BRACING MEANS CONNECTING SAID FRAME AND THE OTHER OF SAID END PORTIONS.
Claim 2
Dependent Claim
120 words
IN A SCAFFOLD DEVICE, OPPOSITELY DISPOSED VERTICAL END PORTIONS, BRACE MEMBERS CONNECTING SAID END PORTIONS, HINGE MEANS PIVOTALLY CONNECTING SAID BRACES TO SAID END PORTIONS, MEANS ON SAID END PORTIONS FOR SUPPORTING A PLURALITY OF PLANKS THEREBETWEEN. A FRAME DETACHABLY MOUNTED ON ONE OF SAID END PORTIONS, POSTS ON SAID FRAME EXTENDING BELOW THE BOTTOM OF THE END PORTION TO WHICH IT IS MOUNTED TO ELEVATE SAID END PORTION FROM A SUPPORTING SURFACE, SAID POSTS BEING RIGIDLY SECURED TOGETHER THROUGH SAID FRAME WHEREBY EACH POST WILL BE FREE FROM DISPLACEMENT BY ANY UPWARD VERTICAL PRESSURE ON THE LOWER END OF ANY OF THE OTHER OF SAID POSTS, AND BRACING MEANS CONNECTING SAID FRAME AND THE OTHER OF SAID END PORTIONS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |