Patent US3248337A successfully refreshed from Google Patents.
US3248337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite reducing agent for use in the textile industry
Assignee: —
•
Filing: —
•
Granted: 1966-04-26
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Expires: 1983-04-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:42
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/64; D; D06; D06M; D06M16/00; D06M2200/00; D06M2200/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2993743A
Cited
US2993742A
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US2164930A
Cited
US2407346A
Cited
US2662896A
Cited
US2772284A
Cited
US2761868A
Cited
GB777377A
Cited
US2914537A
Cited
GB863915A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |