US3236018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load-supporting metallic floor panels
Assignee: Mercantile Safe Deposit and Trust Co
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Filing: 1963-07-16
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Granted: 1966-02-22
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Expires: 1983-07-16
Abstract
No abstract record available.
Inventors
- 👤 Donald C Graham
- 👤 Dale E Hein
- 👤 George H Stram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:02
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/32; B; B62; B62D; B62D25/00; B62D25/20; B62D25/2054; B62D33/00; B62D33/04; B62D33/048; B64; B64C; B64C1/00; B64C1/18; E04C2/02; E04C2/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
138 words
A RIGID, METALLIC STRUCTURAL PANEL COMPRISING A PAIR OF SPACED PARALLEL SHEETS OF SIMILAR SHAPE AND AREA, A STRUT MEANS EXTENDING FROM ONE SHEET INTO ENGAGEMENT WITH THE OTHER SHEET TO TRANSMIT LOAD FORCES FROM SAID ONE SHEET TO THE OTHER TO RENDER SAID PANEL RIGID, THE PERIPHERAL EDGES OF SAID SHEETS BEING BENT AT RIGHT ANGLES TO FORM OVERLAPPING FLANGES EXTENDING TOWARD EACH OTHER, MEANS FOR CONNECTING SAID FLANGES TO EACH OTHER, THE TERMINAL EDGE OF THE FLANGE ON SAID ONE SHEET BEING BENT SLIGHTLY OUT OF THE PLANE OF SAID FLANGE TO PROVIDE A CONTINUOUS CHANNEL AROUND SAID OTHER SHEET, A WEAR SURFACE LAYER SECURED TO THE TOP OF SAID OTHER SHEET, AND A FINISHING STRIP SECURED IN SAID CONTINUOUS CHANNEL AND HAVING ITS TOP SURFACE FLUSH WITH THE TOP SURFACE OF SAID WEAR SURFACE LAYER.
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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |