US3566556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building panels
Assignee: Individual
•
Filing: 1969-08-06
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Granted: 1971-03-02
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Expires: 1989-08-06
Abstract
Abstract A PANEL UNIT COMPRISING A PLURALITY OF RECTANGULAR PANELS INTERCONNECTED BY ELONGATED FLEXIBLE HINGES WHICH ALSO ACT AS SEALS BETWEEN THE PANELS. THE OUTER PANELS IN THE UNIT HAVE HOOK PILE MATERIAL ADJACENT THEIR OUTER EDGES FOR PURPOSES OF CONNECTING THE UNIT TO ADJACENT PANEL UNITS OF SIMILAR CONSTRUCTION. THE PANELS ARE MADE FROM PLYWOOD WITH AN EPOXY COATING ON THEIR OUTER SURFACES WHILE THE SEALING STRIPS ARE MADE FROM CROSS WOVEN NYLON WITH A VINYL COATING AND ARE BONDED TO THE PANELS BY AN ADHESIVE.
Inventors
- 👤 Walter B Nichols
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:41
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/343; E04B1/344; E04B1/345; E04B1/32; E04B1/3205; E04B2001/3235; E04B2001/3252; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24008; Y10T428/24017
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 |