US3331179A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforcing mat structure with ring spacers for use in concrete construction
Assignee: Baustahlgewebe GmbH
•
Filing: 1964-07-06
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Granted: 1967-07-18
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Expires: 1984-07-06
Abstract
No abstract record available.
Inventors
- 👤 Ernst Walter
- 👤 Hatting Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:24
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/16; E04C5/20; E04C5/203; E04C5/01; E04C5/02; E04C5/04; E04C5/168; E04C5/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
IN COMBINATION WITH A MAT STRUCTURE FOR USE IN REINFORCED CONCRETE CONSTRUCTION COMPRISING SETS OF SPACED AND SUPERPOSED INTERSECTING LONGITUDINAL AND TRANSVERSE RODS JOINED AT THEIR INTERSECTION POINTS TO FORM A REINFORCING MAT STRUCTURE; SPACING MEANS TO MAINTAIN AND STRUCTURE AT A CONSTANT DISTANCE FROM THE WALL OF THE CONCRETE FORMWORK IN WHICH SAID STRUCTURE IS TO BE MOUNTED BEING COMPRISED OF A PLURALITY OF RING-SHAPED SPACING ELEMENTS HAVING A CIRCULAR CROSS-SECTION AND BEING LOOSELY THREADED UPON THE RODS OF AT LEAST ONE OF SAID SETS, SAID ELEMENTS HAVING AN INNER DIAMETER SUBSTANTIALLY IN EXCESS OF THE CROSS-SECTIONAL DIMENSION OF THE COMPONENT RODS OF SAID STRUCTURE ENCIRCLED THEREBY WHEREBY SAID ELEMENTS ASSUME A FIXED INCLINED POSITION RELATIVE TO SAID RODS UPON MOUNTING OF SAID MAT UPON SAID WALL.
Claim 2
Dependent Claim
128 words
IN COMBINATION WITH A MAT STRUCTURE FOR USE IN REINFORCED CONCRETE CONSTRUCTION COMPRISING SETS OF SPACED AND SUPERPOSED INTERSECTING LONGITUDINAL AND TRANSVERSE RODS JOINED AT THEIR INTERSECTION POINTS TO FORM A REINFORCING MAT STRUCTURE; SPACING MEANS TO MAINTAIN AND STRUCTURE AT A CONSTANT DISTANCE FROM THE WALL OF THE CONCRETE FORMWORK IN WHICH SAID STRUCTURE IS TO BE MOUNTED BEING COMPRISED OF A PLURALITY OF RING-SHAPED SPACING ELEMENTS HAVING A CIRCULAR CROSS-SECTION AND BEING LOOSELY THREADED UPON THE RODS OF AT LEAST ONE OF SAID SETS, SAID ELEMENTS HAVING AN INNER DIAMETER SUBSTANTIALLY IN EXCESS OF THE CROSS-SECTIONAL DIMENSION OF THE COMPONENT RODS OF SAID STRUCTURE ENCIRCLED THEREBY WHEREBY SAID ELEMENTS ASSUME A FIXED INCLINED POSITION RELATIVE TO SAID RODS UPON MOUNTING OF SAID MAT UPON SAID WALL.
References Cited (Backward Citations)
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |