US3566559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Demountable wall structure
Assignee: Advanced Equipment Corp
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Filing: 1968-12-23
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Granted: 1971-03-02
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Expires: 1988-12-23
Abstract
Abstract DEMOUNTABLE WALL PANELS ARE DISCLOSED WHICH INCLUDE CENTRALLY LOCATED PANEL SECTIONS, CEILING CLAMPS MOUNTED ON THE TOPS OF THESE PANELS, SPRING MEANS BIASING HESE CEILING CLAMPS AWAY FROM THE SECTIONS ON WHICH THELY ARE LOCATED, TOGGLE MEANS CONNECTING THE CEILING CLAMPS ON THESE SECTIONS AND MEANS FOR MOVING THE TOGGLE MEANS SO THAT THE CEILING CLAMPS ARE IN EITHER AN EXTENDED POSITION OR RETRACTED POSITION IN WHICH THEY EXTEND GENERALLY ALONG THE TOPS OF THE PANEL SECTIONS. THESE PANELS PREFERABLY ALSO INCLUDE INNER ENGAGING MEANS LOCATED ALONG THEIR SIDE EDGES AND AN ADJUSTABLE BOTTOM PLATE LOCATED ALONG THEIR BOTTOMS.
Inventors
- 👤 Wesley B Dickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:16
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/76; E04B2/78; E04B2/82; E04B2/821; E04B2/824
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |