US2591625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of rustproofing and using concrete reinforcing elements
Assignee: Internationella Siporex AB
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Filing: 1948-11-01
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Granted: 1952-04-01
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Expires: 1968-11-01
Abstract
No abstract record available.
Inventors
- 👤 Simonsson Hans Lennart
- 👤 Ulfstedt Torsten Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:35
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/01; E04C5/015; E04C5/017
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
103 words
IN THE MAKING OF REINFORCED CONCRETE WHEREIN RUST-PROOFED STEEL AND IRON REINFORCING ELEMENTS ARE EMPLOYED, THE PROCESS WHICH COMPRISES COATING THE REINFORCING ELEMENTS WITH A HYDRAULIC CEMENT LIQUID SLURRY CONTAINING FROM ABOUT 5 TO 25 PER CENT OF A HYDROPHILIC ORGANIC COLLOIDAL BINDING MATERIAL WHICH AT LEAST SWELLS IN WATER AND RETARDS THE SETTING OF THE COMPOSITION, DRYING THE COATING BEFORE SETTING TAKES PLACE, AND SURROUNDING THE REINFORCING ELEMENTS WITH A HYDRAULIC CEMENT GROUT, WHEREBY THE CEMENT COATING ON THE REINFORCING ELEMENTS SETS AND UNITES WITH THE CONCRETE DURING SETTING THEREOF, PRODUCING TIGHT WATER-PROOF TOUGH JOINTS BETWEEN THE REINFORCING ELEMENTS AND THE CONCRETE.
References Cited (Backward Citations)
US2105324A
Cited
US2339163A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |