Patent US3647729A successfully refreshed from Google Patents.
US3647729A
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US
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Infrared-absorbent methyl methacrylate resin composition and shaped articles thereof
Assignee: Kyowa Gas Chemical Industry Co Ltd
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Filing: 1969-04-29
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Granted: 1972-03-07
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Expires: 1989-04-29
Abstract
Abstract A THERMIC RAY-ABSORBENT METHYL METHACRYLATE RESIN COMPOSITION COMPRISING A METHYL METHACRYLATE RESIN WHICH MAY CONTAIN NOT OVER 50% BY WEIGHT OF A COPOLYMERIZABLE MONOMER, SAID RESIN BEING INCORPORATED WITH A NICKEL COMPOUND SELECTED FROM THE GROUP CONSISTING OF ORGANIC ACID SALTS OF NICKEL AND NICKEL COMPLEXES, IN AN AMOUNT OF 0.07-5% BY WEIGHT, CALCULATED AN NICKEL AND SHAPED ARTICLES MADE THEREFROM.
Inventors
- 👤 Haruo Nagai
- 👤 Naohisa Sugiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:47
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/12; C08F20/14; C08F2/00; C08F2/44
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) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |