US3566555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roof structure
Assignee: Ickes Braun Glasshouses Inc
•
Filing: 1969-08-22
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Granted: 1971-03-02
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Expires: 1989-08-22
Abstract
Abstract AN IMPROVED ROOF STRUCTURE HAVING A PLURALITY OF PARALLEL ELONGATED FRAMEWORK MEMBERS INCLUDING GUIDE CHANNELS FOR A MOVABLE ROOF COVERING PANEL WHICH CAN BE MOVED LONGITUDINALLY ALONG THE ROOF TO OPEN OR CLOSE THE ROOF. THE MOVABLE AND FIXED ROOF PANELS OVERLAP TO FACILITATE DRAINAGE. THE MOVABLE PANEL IS MOVED AS DESIRED IN THE GUIDE CHANNELS BY OPERATION OF A MOTOR WHICH IS EFFECTIVE TO PREVENT MOVEMENT OF THE PANELS WHEN IT IS NOT IN OPERATION
Inventors
- 👤 Hans F Schultz
- 👤 Carl Radtke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:40
CPC Classifications
E; E04; E04B; E04B7/00; E04B7/16; E04B7/166
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 |