US3030664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of reinforced lightweight concrete
Assignee: Casius Corp Ltd
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Filing: 1956-07-03
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Granted: 1962-04-24
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Expires: 1976-07-03
Abstract
No abstract record available.
Inventors
- 👤 Wijard Endel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:54
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; C04B28/04; C04B20/00; C04B20/10; C04B20/1055; C04B20/1077; E; E04; E04C; E04C5/00; E04C5/01; E04C5/015; E04C5/017; C04B2111/00; C04B2111/40; Y; Y10; Y10S; Y10S524/00; Y10S524/925; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31707
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
IN THE MANUFACTURE OF REINFORCED STEAM-CURED LIGHTWEIGHT CONCRETE, THE PROCESS WHICH COMPRISES COATING METAL REINFORCING ELEMENTS WITH A SLURRY COMPRISING A SUSPENSION OF A HYDRAULIC CEMENT AND RUBBER, SAID SUSPENSION CONTAINING FROM ABOUT 1 TO 15% BY WEIGHT OF RUBBER, BASED ON THE HYDRAULIC CEMENT, DRYING THE COATING, THUS PRODUCING A TOUGH AND ELASTIC COATING FILM ON THE REINFORCEMENT, CASTING THE REINFORCING ELEMENTS SO-TREATED INTO LIGHT-WEIGHT CONCRETE AND SUBJECTING THE CONVERTED INTO A STREAM-CURING, WHEREBY THE COATING IS CONVERTED INTO A HARD AND STRONG LAYER ADHERING EFFECTIVELY TO THE REINFORCING ELEMENTS AS WELL AS TO THE SURROUNDING LIGHT-WEIGHT CONCRETE.
Claim 2
Dependent Claim
99 words
IN THE MANUFACTURE OF REINFORCED STEAM-CURED LIGHTWEIGHT CONCRETE, THE PROCESS WHICH COMPRISES COATING METAL REINFORCING ELEMENTS WITH A SLURRY COMPRISING A SUSPENSION OF A HYDRAULIC CEMENT AND RUBBER, SAID SUSPENSION CONTAINING FROM ABOUT 1 TO 15% BY WEIGHT OF RUBBER, BASED ON THE HYDRAULIC CEMENT, DRYING THE COATING, THUS PRODUCING A TOUGH AND ELASTIC COATING FILM ON THE REINFORCEMENT, CASTING THE REINFORCING ELEMENTS SO-TREATED INTO LIGHT-WEIGHT CONCRETE AND SUBJECTING THE CONVERTED INTO A STREAM-CURING, WHEREBY THE COATING IS CONVERTED INTO A HARD AND STRONG LAYER ADHERING EFFECTIVELY TO THE REINFORCING ELEMENTS AS WELL AS TO THE SURROUNDING LIGHT-WEIGHT CONCRETE.
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) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |