US2827397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-proofing of concrete or masonry surfaces
Assignee: Wyeth Holdings LLC
•
Filing: 1954-08-23
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Granted: 1958-03-18
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Expires: 1974-08-23
Abstract
No abstract record available.
Inventors
- 👤 James G Affleck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:00
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/46; C04B41/48; C04B41/483; C04B41/4834; C04B2111/00; C04B2111/20; C04B2111/27; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249967; Y10T428/249968; Y10T428/31504; Y10T428/31652; Y10T428/31667
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
AN ARTICLE WHICH COMPRISES POROUS MASONRY HAVING PORES CONTAINING A GEL FORMED BY THE COPOLYMERIZATION OF A MAJOR PORTION OF MONOFUNCTIONAL MONOMER HAVING A SINGLE RADICAL OF THE GROUP CONSISTING OF ACRYLYL AND METHACRYLYL RADICALS AND A SOLUBILITY IN WATER OF AT LEAST 3% BY WEIGHT WITH BETWEEN ABOUT 0.5 AND ABOUT 25 PERCENT BY WEIGHT BASED ON THE TOTAL POLYMERIZABLE MATTER OF A POLYFUNCTIONAL MONOMER HAVING AT LEAST TWO RADICALS OF THE GROUP CONSISTING OF ACRYLYL AND METHACRYLYL RADICALS AND HAVING A SOLUBILITY IN WATER OF AT LEAST 0.25% BY WEIGHT.
Claim 2
Dependent Claim
92 words
AN ARTICLE WHICH COMPRISES POROUS MASONRY HAVING PORES CONTAINING A GEL FORMED BY THE COPOLYMERIZATION OF A MAJOR PORTION OF MONOFUNCTIONAL MONOMER HAVING A SINGLE RADICAL OF THE GROUP CONSISTING OF ACRYLYL AND METHACRYLYL RADICALS AND A SOLUBILITY IN WATER OF AT LEAST 3% BY WEIGHT WITH BETWEEN ABOUT 0.5 AND ABOUT 25 PERCENT BY WEIGHT BASED ON THE TOTAL POLYMERIZABLE MATTER OF A POLYFUNCTIONAL MONOMER HAVING AT LEAST TWO RADICALS OF THE GROUP CONSISTING OF ACRYLYL AND METHACRYLYL RADICALS AND HAVING A SOLUBILITY IN WATER OF AT LEAST 0.25% BY WEIGHT.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-17 | 1961-09-16 | 1962-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-17 | 1965-09-16 | 1966-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-17 | 1969-09-16 | 1970-03-18 | $7700.00 | Window Closed / Lapsed |