US3649424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panels
Assignee: Individual
•
Filing: 1969-06-30
•
Granted: 1972-03-14
•
Expires: 1989-06-30
Abstract
Abstract STRUCTURAL AND/OR DECORATIVE PANELS OF THIS INVENTION COMPRISE A POROUS MAT IMPREGNATED WITH A COMPOSITION AS HEREIN REFERRED TO AND OVERLAID BY A LAYER OF A COMPATIBLE COMPOSITION, ONE OR MORE ELONGATED FIXING DEVICES BEING ANCHORED IN THE COMPOSITION LAYER AND PROTRUDING THROUGH THE MAT FOR ATTACHING THE PANEL TO A REINFORCING MEMBER. THE ADVANTAGES OF PANELS MADE IN ACCORDANCE WITH THIS INVENTION INCLUDE MOULDING THE PANEL IN SITU WITH SHUTTERING WHICH AFFORDS REINFORCEMENT FOR THE PANELS AND OVERCOMES THE REQUIREMENT OF EXPENSIVE MOULDS.
Inventors
- 👤 Maxwell Alvin Earl Rhiando
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:25
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0871; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/20; E04C2/30; E04C2/38; E04C2/386; E04F13/18; E04F13/185; Y; Y10; Y10T; Y10T428/00; Y10T428/16; Y10T428/161; Y10T428/24; Y10T428/24008
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) | 1975-03-14 | 1975-09-13 | 1976-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-14 | 1979-09-13 | 1980-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-14 | 1983-09-13 | 1984-03-14 | $7700.00 | Window Closed / Lapsed |