US3385557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-purpose building member
Assignee: Individual
•
Filing: 1965-09-15
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Granted: 1968-05-28
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Expires: 1985-09-15
Abstract
No abstract record available.
Inventors
- 👤 Robert D Rambelle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:24
CPC Classifications
E; E04; E04G; E04G11/00; E04G11/36; E04G11/48; E04G11/50; E04C; E04C3/00; E04C3/02; E04C3/29; E04G11/06; E04G11/08; E04G11/12; E04G17/00; E04G17/14; E04G2011/505
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A BUILDING MEMBER, FOR USE AS STRINGERS AND JOISTS IN PROVIDING TEMPORARY SUPPORT IN THE FORMATION OF CONCRETE FLOORS, COMPRISING, (A) A LONGITUDINALLY-EXTENDING METAL SECTION OF GENERALLY U-SHAPED CROSS-SECTION HAVING A BASE PORTION AND A PAIR OF VERTICALLY-EXTENDING SIDEWALL ELEMENTS, (B) A THIN, LONGITUDINALLY-EXTENDING INSERT STRIP OF NAILABLE, SEMI-RIGID MATERIAL POSITIONED HORIZONTALLY BETWEEN SAID SIDEWALLS, AND RECESSED SLIGHTLY BENEATH THE UPPER EDGES THEREOF, TO FORM WITH SAID CHANNEL SECTION A COMPOSITE BOX-LIKE BEAM MEMBER, AND (C) A LONGITUDINALLY-EXTENDING RIB ELEMENT, FORMED FROM A FLEXIBLE MATERIAL HAVING GOOD FRICTIONAL PROPERTIES, SAID RIB ELEMENT NORMALLY PROJECTING ABOVE THE HORIZONTAL PLANE FORMED BY THE UPPER SIDEWALL EDGES OF SAID U-SHAPED CHANNEL SECTION BUT DEFORMING UNDER AN APPLIED VERTICAL LOAD SO AS TO BECOME FLUSH WITH SAID PLANE, WHEREBY SAID BEAM MEMBER IS PROVIDED WITH A SLIDE-RESISTANT FRICTIONAL BEARING SURFACE.
Claim 2
Dependent Claim
136 words
A BUILDING MEMBER, FOR USE AS STRINGERS AND JOISTS IN PROVIDING TEMPORARY SUPPORT IN THE FORMATION OF CONCRETE FLOORS, COMPRISING, (A) A LONGITUDINALLY-EXTENDING METAL SECTION OF GENERALLY U-SHAPED CROSS-SECTION HAVING A BASE PORTION AND A PAIR OF VERTICALLY-EXTENDING SIDEWALL ELEMENTS, (B) A THIN, LONGITUDINALLY-EXTENDING INSERT STRIP OF NAILABLE, SEMI-RIGID MATERIAL POSITIONED HORIZONTALLY BETWEEN SAID SIDEWALLS, AND RECESSED SLIGHTLY BENEATH THE UPPER EDGES THEREOF, TO FORM WITH SAID CHANNEL SECTION A COMPOSITE BOX-LIKE BEAM MEMBER, AND (C) A LONGITUDINALLY-EXTENDING RIB ELEMENT, FORMED FROM A FLEXIBLE MATERIAL HAVING GOOD FRICTIONAL PROPERTIES, SAID RIB ELEMENT NORMALLY PROJECTING ABOVE THE HORIZONTAL PLANE FORMED BY THE UPPER SIDEWALL EDGES OF SAID U-SHAPED CHANNEL SECTION BUT DEFORMING UNDER AN APPLIED VERTICAL LOAD SO AS TO BECOME FLUSH WITH SAID PLANE, WHEREBY SAID BEAM MEMBER IS PROVIDED WITH A SLIDE-RESISTANT FRICTIONAL BEARING SURFACE.
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) | 1971-05-28 | 1971-11-27 | 1972-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-28 | 1975-11-27 | 1976-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-28 | 1979-11-27 | 1980-05-28 | $7700.00 | Window Closed / Lapsed |