US2797448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallic sheet-faced panel structures
Assignee: Reynolds Metals Co
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Filing: 1953-03-11
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Granted: 1957-07-02
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Expires: 1973-03-11
Abstract
No abstract record available.
Inventors
- 👤 Donald H Revell
- 👤 John L Webster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:27
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/26; E04C2/284; E04C2/292; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49876
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A METALLIC SHEET-FACED PANEL STRUCTURE COMPRISING A COMPRESSIBLE CORE MEMBER FORMED AT ONE FACE WITH A U-SHAPED CHANNEL, AND A METALLIC SHEET ABUTTING SAID FACE, THE SHEET BEING FORMED FROM EDGE TO EDGE THEREOF WITH A SUBSTANTIALLY HEART-SHAPED SHOULDERED SPRING BEAD NORMALLY HAVING A PASSAGEWAY FROM THE OUTSIDE OF THE SHEET AND INTO THE BEAD, THE BEAD BEING SPRING LOCKED FIG - 01 INTO THE CHANNELWAY OF THE CORE AND EXPANDED WITH ITS SHOULDERS PRESSING INTO AND DEFORMING THE WALLS OF THE CORE CHANNEL, AS AND FOR THE PURPOSE SET FORTH.
Claim 2
Dependent Claim
91 words
A METALLIC SHEET-FACED PANEL STRUCTURE COMPRISING A COMPRESSIBLE CORE MEMBER FORMED AT ONE FACE WITH A U-SHAPED CHANNEL, AND A METALLIC SHEET ABUTTING SAID FACE, THE SHEET BEING FORMED FROM EDGE TO EDGE THEREOF WITH A SUBSTANTIALLY HEART-SHAPED SHOULDERED SPRING BEAD NORMALLY HAVING A PASSAGEWAY FROM THE OUTSIDE OF THE SHEET AND INTO THE BEAD, THE BEAD BEING SPRING LOCKED FIG - 01 INTO THE CHANNELWAY OF THE CORE AND EXPANDED WITH ITS SHOULDERS PRESSING INTO AND DEFORMING THE WALLS OF THE CORE CHANNEL, AS AND FOR THE PURPOSE SET FORTH.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |