Patent US3557391A successfully refreshed from Google Patents.
US3557391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined deck and horizontal girder structure
Assignee: Cascade Industries Inc
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Filing: 1968-07-29
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Granted: 1971-01-26
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Expires: 1988-07-29
Abstract
Abstract A STRUCTURE EXTENDING OUTWARDLY FROM THE WALL OF A SWIMMING POOL MAINLY COMBINES THE FUNCTIONS OF A DECK EXTENDING ALONGSIDE THE POOL, AND A GIRDER RESISTING FORCES EXERTED HORIZONTALLY BY THE PRESSURE OF WATER ON THE SIDE WALLS OF THE POOL. THE STRUCTURE INCLUDES A FLAT WEB SERVING AS A DECKING, AND EXTRUCTIONS RECEIVING THE INNER AND OUTER EDGES OF THE WEB. THE EXTRUCTIONS AND WEB FORM A GIRDER, AND ALSO SERVE TO CONNECT THE DECKING TO THE POOL WALL STRUCTURE AND SURROUNDING SUPPORT FRAMING. ADDITIONAL FUNCTIONS SUCH AS THOSE OF A LINER RETAINER, GRAB RAIL, AND COPING MAY BE BUILT INTO THE INNER EXTRUCTION.
Inventors
- 👤 Robert E West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:48
CPC Classifications
E; E04; E04H; E04H4/00
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 |