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US3467487A
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Imparting antistatic properties to fibrous materials through treatment with a polyether containing terminal urea groups and a polyfunctional aldehyde
Assignee: Bayer AG
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Filing: 1963-10-11
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Granted: 1969-09-16
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Expires: 1983-10-11
Abstract
No abstract record available.
Inventors
- 👤 Helmut Kirschnek
- 👤 Georg Von Finck
- 👤 Mathieu Quaedvlieg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:45
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; D06M13/00; D06M13/322; D06M13/372; D06M13/402; D06M13/405; D06M13/432; D06M15/423; D06M15/427; D06P; D06P1/00; D06P1/44; D06P1/52; D06P1/56; D06P1/60; D06P1/607; D06P1/6073
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3324176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |