Patent US3084761A successfully refreshed from Google Patents.
US3084761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scaffold
Assignee: Individual
•
Filing: 1962-03-23
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Granted: 1963-04-09
•
Expires: 1982-03-23
Abstract
No abstract record available.
Inventors
- 👤 Robertson Joseph Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:46
CPC Classifications
E; E04; E04G; E04G1/00; E04G1/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A SCAFFOLD END FRAME COMPRISING AN OUTSIDE PAIR OF SPACED POSTS; A HORIZONTAL BASE BAR JOINING SAID POSTS A PREDETERMINED DISTANCE ABOVE THE LOWER EXTREMITIES THEREOF, SAID BASE BAR BEING THE SOLE FRAME MEMBER JOINED TO BOTH SAID POSTS; A SECOND PAIR OF RELATIVELY WIDELY AND SYMMETRICALLY SPACED POSTS MOUNTED ON SAID BAR INSIDE OF SAID FIRST POSTS AND EXTENDING ABOVE SAID FIRST POSTS A DISTANCE SLIGHTLY LESS THAN SAID PREDETERMINED DISTANCE; A HORIZONTAL PLATFORM BAR JOINING SAID INSIDE POSTS AT THE UPPER EXTREMITIES THEREOF WHEREBY TO PROVIDE A WORK PLATFORM SUPPORT AND TO DEFINE WITH SAID INNER POSTS AND BASE BAR A RELATIVELY LARGE PASSAGEWAY BELOW SAID PLATFORM, SAID INNER AND OUTER POSTS AND BASE BAR BEING SO ARRANGED THAT SAID PASSAGEWAY IS PRESERVED WHEN SAID END FRAME SUPPORTS ANOTHER END FRAME OF LIKE CONSTRUCTION; HORIZONTAL WALKWAY BARS JOINING EACH RESPECTIVE OUTER POST
Claim 2
Dependent Claim
144 words
A SCAFFOLD END FRAME COMPRISING AN OUTSIDE PAIR OF SPACED POSTS; A HORIZONTAL BASE BAR JOINING SAID POSTS A PREDETERMINED DISTANCE ABOVE THE LOWER EXTREMITIES THEREOF, SAID BASE BAR BEING THE SOLE FRAME MEMBER JOINED TO BOTH SAID POSTS; A SECOND PAIR OF RELATIVELY WIDELY AND SYMMETRICALLY SPACED POSTS MOUNTED ON SAID BAR INSIDE OF SAID FIRST POSTS AND EXTENDING ABOVE SAID FIRST POSTS A DISTANCE SLIGHTLY LESS THAN SAID PREDETERMINED DISTANCE; A HORIZONTAL PLATFORM BAR JOINING SAID INSIDE POSTS AT THE UPPER EXTREMITIES THEREOF WHEREBY TO PROVIDE A WORK PLATFORM SUPPORT AND TO DEFINE WITH SAID INNER POSTS AND BASE BAR A RELATIVELY LARGE PASSAGEWAY BELOW SAID PLATFORM, SAID INNER AND OUTER POSTS AND BASE BAR BEING SO ARRANGED THAT SAID PASSAGEWAY IS PRESERVED WHEN SAID END FRAME SUPPORTS ANOTHER END FRAME OF LIKE CONSTRUCTION; HORIZONTAL WALKWAY BARS JOINING EACH RESPECTIVE OUTER POST
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US2569653A
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US2674476A
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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) | 1966-04-08 | 1966-10-08 | 1967-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-08 | 1970-10-08 | 1971-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-08 | 1974-10-08 | 1975-04-09 | $7700.00 | Window Closed / Lapsed |