US3639344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating compositions comprising an epoxy resin and aliphatic amine reaction products
Assignee: Sika Corp
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Filing: 1969-08-21
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Granted: 1972-02-01
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Expires: 1989-08-21
Abstract
Abstract THIS INVENTION RELATES TO A COATING COMPOSITION SUITABLE FOR COATING OR PAINTING WET OR DAMP SUBSTRATES WHICH IS CAPABLE OF CURING TO A HARD FILM UNDER WATER COMPRISING AN EPOXY RESIN AND A SUBSTANTIALLY WATER-INSENSITIVE CURING AGENT FOR SAID RESIN COMPRISING A REACTION PRODUCT OF A POLYAMINE AND A MONOFUNCTIONAL EPOXIDE-CONTAINING MATERIAL.
Inventors
- 👤 William P Kinnneman Jr
- 👤 John R Uram Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:43
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/182; C08G59/184; C09; C09D; C09D163/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |