Patent US3672942A successfully refreshed from Google Patents.
US3672942A
Expired / Lapsed
US
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Process for impregnating porous metal articles
Assignee: Henkel Loctite Corp
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Filing: 1969-12-24
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Granted: 1972-06-27
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Expires: 1989-12-24
Abstract
Abstract POROUS ARTICLES CAN BE SEALED AND IMPREGNATED WITHOUT HEAT CURE BY (1) IMPREGNATING THE ARTICLE WITH THE ANAEROBIC COMBINATION OF AN ACRYLATE MONOMER AND A REDOX CATALYST SYSTEM; AND (2) FOLLOWING THE IMPREGNATED STEP BY TREATING THE IMPREGNATED ARTICLE WITH AN ACCELERATOR OF FREE RADICAL POLYMERIZATION.
Inventors
- 👤 Edward W Neumann
- 👤 Richard Borowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:34
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/24; B22F3/26; B22D; B22D31/00; B22D31/002; B22D31/005; C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/20
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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |