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Patent US3564802A successfully refreshed from Google Patents.
US3564802A
Expired / Lapsed
US
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Scaffolding system
Assignee: Individual
•
Filing: 1969-10-07
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Granted: 1971-02-23
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Expires: 1989-10-07
Abstract
Abstract THIS INVENTION RELATES TO A THREE-DIMENSIONAL SCAFFOLDING SYSTEM HAVING FOUR VERTICALLY EXTENDING CORNER POSTS, UPPER HORIZONTAL MEMBERS CONNECTING THE UPPER ENDS OF ADJACENT POSTS AND LOWER HORIZONTAL MEMBERS CONNECTING THE LOWER ENDS OF ADJACENT POSTS, AN I-LINK FOR CONNECTING THE MEDIAL PORTION OF ONE UPPER HORIZONTAL MEMBER WITH A MEDIAL PORTION OF ITS ADJACENT LOWER HORIZONTAL MEMBER.
Inventors
- 👤 Jean-Paul L Dreyfus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:00
CPC Classifications
E; E04; E04G; E04G11/00; E04G11/36; E04G11/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |