Patent US4476389A successfully refreshed from Google Patents.
US3239587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for precasting a structural building element
Assignee: Individual
•
Filing: 1963-07-05
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Granted: 1966-03-08
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Expires: 1983-07-05
Abstract
No abstract record available.
Inventors
- 👤 Dietziker Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:01
CPC Classifications
B; B28; B28B; B28B3/00; B28B3/02; B28B3/08; B28B3/083; B28B1/00; B28B1/29; B28B23/00; B28B23/02; B28B23/022; B28B23/18; E; E04; E04C; E04C2/00; E04C2/02; E04C2/04; E04C2/049; E04C3/00; E04C3/02; E04C3/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN A METHOD OF FABRICATING STRUCTURAL BUILDING COMPONENTS IN THE FORM OF PLANKS OR BEAMS DSTINED FOR THE ERECTION OF WALLS AND/OR LOAD-CARRYING CEILINGS, THE STEPS OF SEQUENTIALLY PRODUCING FROM CONVENTIONAL CONCRETE ON A WORKING PLATFORM IN SIDE-BY-SIDE RELATIONSHIP, A PLURALITY OF REINFORCED COMPONENTS PREFEREABLY OF T-SHAPED CROSS-SECTION, THE WEBS OF SAID COMPONENTS STANDING UPRIGHT, PLACING CORES OVER THE ABUTTING JOINTS OF SAID REINFORCED COMPONENTS END PORTIONS OF TRANSVERSE REINFORCEMENT MEANS PROJECTING INTO A TUNNEL-LIKE SPACE FORMED BY SAID CORES, CASTING A SLAB OF POROUS INSULATING MATERIAL OVER A SERIES OF SUCH COMPONENTS, SAID CORES PRODUCING A TUNNELLIKE SPACE ABOVE SAID JOINTS WHICH IS FREE OF SAID POROUS MATERIAL, AND CUTTING SAID SLAB IN VERTICAL PLANES PASSING THROUGH SAID JOINTS AND SAID TUNNEL-LIKE SPACES.
Claim 2
Dependent Claim
124 words
IN A METHOD OF FABRICATING STRUCTURAL BUILDING COMPONENTS IN THE FORM OF PLANKS OR BEAMS DSTINED FOR THE ERECTION OF WALLS AND/OR LOAD-CARRYING CEILINGS, THE STEPS OF SEQUENTIALLY PRODUCING FROM CONVENTIONAL CONCRETE ON A WORKING PLATFORM IN SIDE-BY-SIDE RELATIONSHIP, A PLURALITY OF REINFORCED COMPONENTS PREFEREABLY OF T-SHAPED CROSS-SECTION, THE WEBS OF SAID COMPONENTS STANDING UPRIGHT, PLACING CORES OVER THE ABUTTING JOINTS OF SAID REINFORCED COMPONENTS END PORTIONS OF TRANSVERSE REINFORCEMENT MEANS PROJECTING INTO A TUNNEL-LIKE SPACE FORMED BY SAID CORES, CASTING A SLAB OF POROUS INSULATING MATERIAL OVER A SERIES OF SUCH COMPONENTS, SAID CORES PRODUCING A TUNNELLIKE SPACE ABOVE SAID JOINTS WHICH IS FREE OF SAID POROUS MATERIAL, AND CUTTING SAID SLAB IN VERTICAL PLANES PASSING THROUGH SAID JOINTS AND SAID TUNNEL-LIKE SPACES.
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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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |