US3557499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Movable wall panel system
Assignee: Formica Corp
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Filing: 1969-07-15
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Granted: 1971-01-26
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Expires: 1989-07-15
Abstract
Abstract A MOVABLE WALL PANEL SYSTEM IS DESCRIBED IN WHICH THE PANELS MOVE ON OVERHEAD TRACK AND ARE DOUBLE AND HOLLOW, PROVIDED WITH REMOVABLE CENTER PANELS, MATING SIDE EDGES WITH ACOUSTICAL INSULATION AND MEANS FOR PRESSING RESILIENT TOP AND BOTTOM PIECES AGAINST THE CEILING TRACK AND THE FLOOR WHEN A PANEL IS IN POSITION. THE SAME MEANS PROVIDES FOR AUTOMATIC LEVELING TO COMPENSATE FOR TRACT UNEVENESS OR FLOOR UNEVENESS.
Inventors
- 👤 William Niven Dickie
- 👤 Norman Jack Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:14
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/82; E04B2/827; E06; E06B; E06B7/00; E06B7/16; E06B7/18; E04B2002/7461; E04B2002/7468
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |