US3283466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rigid lattice girder for floors
Assignee: Individual
•
Filing: 1964-04-13
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Granted: 1966-11-08
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Expires: 1984-04-13
Abstract
No abstract record available.
Inventors
- 👤 Grebner Fritz
- 👤 Kolsch Wilhelm
- 👤 Spindler Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:44
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/16; E04C5/18; E04C5/01; E04C5/06; E04C5/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A RIGID LATTICE GIRDER FOR FLOORS, COMPRISING AN ELONGATED CONCRETE SLAB, A LOWER GIRDER CHORD MEANS EMBEDDED IN THE CONCRETE SLAB AND EXTENDING IN THE DIRECTION OF ELONGATION OF THE SLAB, AN UPPER GIRDER CHORD SPACED FROM THE LOWER CHORD MEANS AND GENERALLY PARALLEL THERETO, THE UPPER CHORD BEING ARRANGED CENTRALLY OF THE LOWER CHORD MEANS IN THE DIRECTION OF ELONGATION OF THE SLAB AND STRUT MEANS CONNECTING THE LOWER CHORD MEANS AND THE UPPER CHORD, THE STRUT MEANS CONSISTING OF A PLURALITY OF YOKES EXTENDING TRANSVERSELY OF THE GIRDER CHORD MEANS AND BEING DIAGONALLY INCLINED IN RELATION THERETO, EACH YOKE HAVING AN ASYMMETRICAL TRANSVERSE EXTENSION ADJACENT THE LOWER CHORD MEANS, AND ALTERNATING ONES OF SAID YOKES BEING SO ARANGED IN THE DIRECTION OF ELONGATION OF THE SLAB THAT THE YOKE EXTENSIONS ARE ON ALTERNATING SIDES OF THE UPPER CHORD IN A TRANSVERSE DIRECTION.
Claim 2
Dependent Claim
144 words
A RIGID LATTICE GIRDER FOR FLOORS, COMPRISING AN ELONGATED CONCRETE SLAB, A LOWER GIRDER CHORD MEANS EMBEDDED IN THE CONCRETE SLAB AND EXTENDING IN THE DIRECTION OF ELONGATION OF THE SLAB, AN UPPER GIRDER CHORD SPACED FROM THE LOWER CHORD MEANS AND GENERALLY PARALLEL THERETO, THE UPPER CHORD BEING ARRANGED CENTRALLY OF THE LOWER CHORD MEANS IN THE DIRECTION OF ELONGATION OF THE SLAB AND STRUT MEANS CONNECTING THE LOWER CHORD MEANS AND THE UPPER CHORD, THE STRUT MEANS CONSISTING OF A PLURALITY OF YOKES EXTENDING TRANSVERSELY OF THE GIRDER CHORD MEANS AND BEING DIAGONALLY INCLINED IN RELATION THERETO, EACH YOKE HAVING AN ASYMMETRICAL TRANSVERSE EXTENSION ADJACENT THE LOWER CHORD MEANS, AND ALTERNATING ONES OF SAID YOKES BEING SO ARANGED IN THE DIRECTION OF ELONGATION OF THE SLAB THAT THE YOKE EXTENSIONS ARE ON ALTERNATING SIDES OF THE UPPER CHORD IN A TRANSVERSE DIRECTION.
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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |