Patent US3498981A successfully refreshed from Google Patents.
US3498981A
Expired / Lapsed
US
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Substituted as-triazines
Assignee: Ashland LLC
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Filing: 1966-11-08
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Granted: 1970-03-03
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Expires: 1986-11-08
Abstract
No abstract record available.
Inventors
- 👤 Billy M Culbertson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:47
CPC Classifications
C; C07; C07D; C07D253/00; C07D253/02; C07D253/06; C07D253/065; C08; C08G; C08G73/00; C08G73/06; C08G73/0622; C08G73/0638; C10; C10M; C10M1/00; C10M1/08; G; G01; G01N; G01N31/00; G01N31/22; C10M2215/00; C10M2215/22; C10M2215/221; C10M2215/222; C10M2217/00; C10M2217/02; C10M2217/028; C10M2217/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA638709A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |