Patent US3235038A successfully refreshed from Google Patents.
US3235038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding scaffold
Assignee: Enviri Corp
•
Filing: 1963-04-10
•
Granted: 1966-02-15
•
Expires: 1983-04-10
Abstract
No abstract record available.
Inventors
- 👤 Fritz J Nesslinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:18
CPC Classifications
E; E04; E04G; E04G1/00; E04G1/34; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/32016
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
175 words
A FOLDING SCAFFOLD OF THE TYPE WHEREIN END FRAMES ARE PERMANENTLY OPERATIVELY CONNECTED BY BRACES ARRANGED IN CROSS RELATION AT THE FRONT SIDE OF THE SCAFFOLD AND BY A BRACE AT THE REAR SIDE THEREOF, SAID REAR BRACE INCLUDING TWO TUBES OF SUBSTANTIALLY EQUAL LENGTH HINGED TOGETHER AT THEIR INNER ENDS AND OPERATIVELY INTERPOSED BETWEEN OPPOSED TOP REAR END PORTIONS OF SAID END FRAMES, AND SAID CROSS BRACES BEING OPEATIVELY INTERPOSED BETWEEN OPPOSED FRONT PORTIONS OF SAID END FRAMES, EACH OF SAID CROSS BRACES COMPRISING A LONG TUBE AND A SHORT TUBE HINGED AT ITS INNER END TO THE INNER END OF SAID LONG TUBE THE OUTER END OF EACH SAID LONG TUBE BEING PIVOTALLY CONNECTED TO AN UPPER FRONT PORTION OF ONE OF SAID END FRAMES AND THE OUTER END OF THE SHORT TUBE HINGED THERETO BEING PIVOTALLY CONNECTED TO AN INTERMEDIATE PORTION OF THE OTHER END FRAME, AND SAID LONG TUBES BEING PERMANENTLY PIVOTALLY INTERCONNECTED FOR RELATIVE ANGULAR MOVEMENT AROUND SAID PIVOT CONNECTION DURING ADJUSTMENT OF THE SCAFFOLD TO AND FROM OPERATIVE CONDITION.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |