US3540835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carboxylic acid group containing copolymer is applied to textile which has been treated with an aminoplast resin to improve soil release characteristics thereof
Assignee: Deering Milliken Research Corp
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Filing: 1967-08-11
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Granted: 1970-11-17
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Expires: 1987-08-11
Abstract
No abstract record available.
Inventors
- 👤 Francis W Marco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:43
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/285; D06M15/29; D06M10/00; D06M10/04; D06M10/08; D06M10/10; D06M15/37; D06M15/39; D06M15/423; D06M2101/00; D06M2101/02; D06M2101/04; D06M2101/06; D06M2101/16; D06M2101/30; D06M2101/32; D06M2200/00; D06M2200/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3236685A
Cited
US3377249A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |