Patent US4141905A successfully refreshed from Google Patents.
US4141905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-(2-Methyl-1-naphthyl)-maleimide
Assignee: Angus Chemical Co
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Filing: 1977-10-19
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Granted: 1979-02-27
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Expires: 1997-10-19
Abstract
Abstract N-(2-Methyl-1-naphthyl) maleimide has been found to be a potent biocide capable of protecting fabrics, plastics, paints, etc. from fungal and/or bacterial attack.
Inventors
- 👤 Frank C. Becker
- 👤 Jorge P. Li
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:36
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/44; C07D207/444; C07D207/448; A; A01; A01N; A01N37/00; A01N37/18; A01N37/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
1 words
N-(2-methyl-1-naphthyl)maleimide.
Claim 2
Dependent Claim
1 words
N-(2-methyl-1-naphthyl)maleimide.
References Cited (Backward Citations)
US2444536A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-26 | 1982-08-28 | 1983-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-26 | 1986-08-28 | 1987-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-26 | 1990-08-28 | 1991-02-27 | $7700.00 | Window Closed / Lapsed |