Patent US3284978A successfully refreshed from Google Patents.
US3284978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite floor panel
Assignee: United States Steel Corp
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Filing: 1964-04-16
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Granted: 1966-11-15
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Expires: 1984-04-16
Abstract
No abstract record available.
Inventors
- 👤 Gerald M Roeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:09
CPC Classifications
E; E04; E04F; E04F15/00; E04F15/02; E04F15/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A COMPOSITE FLOOR PANEL COMPRISING (A) A TOP SURFACE MEMBER; (B) A PANEL JOINING STRIP RUNNING LENGTHWISE ON THE UNDERSIDE OF SAID TOP SURFACE MEMBER AND PROTRUDING ALONG AN EDGE THEREOF TO RECEIVE MEANS FOR JOINING AN ADDITIONAL PANEL; (C) GENERALLY U-SHAPED MEMBER RUNNING THE LENGTH OF THE UNDERSIDE OF SAID PANEL, SAID U-SHAPED MEMBER HAVING ONE LEG TIP BEARING ON THE UNDERSIDE OF SAID PANEL JOINING STRIP AND THE OTHER LEG TIP BEARING ON THE UNDERSIDE OF SAID TOP SURFACE MEMBER, THE LEG LENGTHS BEING UNEQUAL TO COMPENSATE FOR THE THICKNESS OF SAID PANEL JOINING STRIP; (D) TRANSVERSE MEMBERS EXTENDING BETWEEN THE LEGS OF SAID U-SHAPED MEMBER AND BEARING ON THE UNDERSIDE OF SAID JOINT NAILER STRIP AND THE UNDERSIDE OF SAID TOP SURFACE MEMBER, AT LEAST ONE OF SAID TRANSVERSE MEMBERS PROTRUDING BEYOND THE TOP SURFACE MEMBER TO RECEIVER MEANS FOR JOINING AN ADDITIONAL PANEL, SAID TRANSVERSE MEMBERS BEING ADAPTED TO PROMOTE STIFFENING OF SAID U-SHAPED MEMBER.
Claim 2
Dependent Claim
159 words
A COMPOSITE FLOOR PANEL COMPRISING (A) A TOP SURFACE MEMBER; (B) A PANEL JOINING STRIP RUNNING LENGTHWISE ON THE UNDERSIDE OF SAID TOP SURFACE MEMBER AND PROTRUDING ALONG AN EDGE THEREOF TO RECEIVE MEANS FOR JOINING AN ADDITIONAL PANEL; (C) GENERALLY U-SHAPED MEMBER RUNNING THE LENGTH OF THE UNDERSIDE OF SAID PANEL, SAID U-SHAPED MEMBER HAVING ONE LEG TIP BEARING ON THE UNDERSIDE OF SAID PANEL JOINING STRIP AND THE OTHER LEG TIP BEARING ON THE UNDERSIDE OF SAID TOP SURFACE MEMBER, THE LEG LENGTHS BEING UNEQUAL TO COMPENSATE FOR THE THICKNESS OF SAID PANEL JOINING STRIP; (D) TRANSVERSE MEMBERS EXTENDING BETWEEN THE LEGS OF SAID U-SHAPED MEMBER AND BEARING ON THE UNDERSIDE OF SAID JOINT NAILER STRIP AND THE UNDERSIDE OF SAID TOP SURFACE MEMBER, AT LEAST ONE OF SAID TRANSVERSE MEMBERS PROTRUDING BEYOND THE TOP SURFACE MEMBER TO RECEIVER MEANS FOR JOINING AN ADDITIONAL PANEL, SAID TRANSVERSE MEMBERS BEING ADAPTED TO PROMOTE STIFFENING OF SAID U-SHAPED MEMBER.
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |