US3293214A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of a sulfomethylated bisphenol-formaldehyde composition for treating wool
Assignee: Crompton and Knowles Corp
•
Filing: 1962-05-15
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Granted: 1966-12-20
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Expires: 1982-05-15
Abstract
No abstract record available.
Inventors
- 👤 James F Feeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:26
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/41; D06M15/412; C; C07; C07G; C07G99/00; C07G99/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2174287A
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US2519978A
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US2522569A
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US2694051A
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US2953597A
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US3029212A
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US2931694A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |