Patent US3553916A successfully refreshed from Google Patents.
US3553916A
Expired / Lapsed
US
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Wall structure
Assignee: Flangeklamp Corp
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Filing: 1968-11-20
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Granted: 1971-01-12
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Expires: 1988-11-20
Abstract
Abstract A PAIR OF DOUBLE WALL RAILS FOR SUPPORTING WINDOW PANES ARE ANGULARLY RELATED AND MEET TO FORM A CORNER. A PAIR OF SIDE-BY-SIDE PANEL CONNECTORS FACING ANOTHER OF SIDE-BY-SIDE PANEL CONNECTORS ARE INTERLOCKED TOGETHER BY MEANS OF A CHANNEL CLIP HAVING EXTENSIONS INSERTABLE INTO ALL FOUR PANELS CONNECTORS TO FORM A BOX-LIKE RIGID CORNER POST SUPPORTING STRUCTURE FOR THE ANGULARLY RELATED RAILS. A COVER IS PROVIDED FOR CLOSING THE TUP OF THE CORNER POST CONSTRUCTION AND COVER PLATES ARE USED TO ENCLOSE EXPOSED PORTIONS OF SAID CORNER POST.
Inventors
- 👤 Robert P Lickliter
- 👤 Earl Abbott
- 👤 John F Reeves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:17
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/82; E04B2/7407; E04B2/7416; E04B2/7422; E04B2/7424; E04B2/7453; E04B2/7455; E04B2/76; E04B2/78; E04B2/7854; E04B2/825; E04B2002/7461; E04B2002/7462; E04B2002/749
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |