US3213581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete floor and ceiling slab construction
Assignee: Individual
•
Filing: 1956-01-25
•
Granted: 1965-10-26
•
Expires: 1976-01-25
Abstract
No abstract record available.
Inventors
- 👤 Anselmo J Macchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:38
CPC Classifications
E; E04; E04B; E04B5/00; E04B5/16; E04B5/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
AN ASSEMBLY FOR USE IN POURING A MONOLITHIC CONCRETE FLOOR AND CEILING SLAB OF THE CONVENTIONAL REINFORCED TYPE WHEREIN THE REINFORCING RODS ACT AS A TENSION MEMBER ONLY AND THE CONCRETE ACTS IN COMPRESSION WITH THE TRANSFER OF STRESSES BETWEEN THEM THROUGH BOND AND SHEAR OF THE CONCRETE AND HAVING LOW WEIGHT AND CALCULABLE HIGH STRENGTH, COMPRISING: A PLANAR FLOOR; A NETWORK OF REINFORCING RODS IN A PREDETERMINED SPACED RELATIONSHIP, SAID NETWORK COMPRISING A FIRST SET OF PARALLEL REGULARLY SPACED APART LONGITUDINALLY EXTENDING RODS AND A SECOND SET OF PARALLEL REGULARLY SPACED APART TRANSVERSELY EXTENDING RODS; A PLURALITY OF HOLLOW CYLINDRICAL TUBES EXTENDING PARALLEL TO ONE SET OF RODS AND SUPPORTED CROSSWISE UPON THE OTHER SET OF RODS IN PARALLEL, PREDETERMINED SPACED RELATIONSHIP, SAID TUBES BEING BUOYANT IN WET CONCRETE; A MULTIPLICITY OF SUPPORTING MEANS ON SAID FLOOR SUPPORTING SAID NETWORK AT A PREDETERMINED SPACING UPWARDLY THEREFROM, SAID SUPPORTING MEANS BEING LOCATED AT SPACED
Claim 2
Dependent Claim
154 words
AN ASSEMBLY FOR USE IN POURING A MONOLITHIC CONCRETE FLOOR AND CEILING SLAB OF THE CONVENTIONAL REINFORCED TYPE WHEREIN THE REINFORCING RODS ACT AS A TENSION MEMBER ONLY AND THE CONCRETE ACTS IN COMPRESSION WITH THE TRANSFER OF STRESSES BETWEEN THEM THROUGH BOND AND SHEAR OF THE CONCRETE AND HAVING LOW WEIGHT AND CALCULABLE HIGH STRENGTH, COMPRISING: A PLANAR FLOOR; A NETWORK OF REINFORCING RODS IN A PREDETERMINED SPACED RELATIONSHIP, SAID NETWORK COMPRISING A FIRST SET OF PARALLEL REGULARLY SPACED APART LONGITUDINALLY EXTENDING RODS AND A SECOND SET OF PARALLEL REGULARLY SPACED APART TRANSVERSELY EXTENDING RODS; A PLURALITY OF HOLLOW CYLINDRICAL TUBES EXTENDING PARALLEL TO ONE SET OF RODS AND SUPPORTED CROSSWISE UPON THE OTHER SET OF RODS IN PARALLEL, PREDETERMINED SPACED RELATIONSHIP, SAID TUBES BEING BUOYANT IN WET CONCRETE; A MULTIPLICITY OF SUPPORTING MEANS ON SAID FLOOR SUPPORTING SAID NETWORK AT A PREDETERMINED SPACING UPWARDLY THEREFROM, SAID SUPPORTING MEANS BEING LOCATED AT SPACED
References Cited (Backward Citations)
US550669A
Cited
US620818A
Cited
GB190228332A
Cited
CH29393A
Cited
US1087644A
Cited
US973165A
Cited
FR458605A
Cited
US1206752A
Cited
US1343326A
Cited
US1531635A
Cited
FR687565A
Cited
US2292655A
Cited
FR934777A
Cited
US2409342A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |