US3597146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Films and fibers having modified ion affinity and hydrophilicity produced through reaction of such substrates with polyoxyalkylene polyaziridines
Assignee: JP Stevens and Co Inc
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Filing: 1969-02-25
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Granted: 1971-08-03
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Expires: 1989-02-25
Abstract
Abstract ANTISTATIC PROPERTIES CAN BE IMPARTED TO SYNTHETIC HYDROPHOBIC MATERIALS, CELLULOSIC MATERIALS, AND BLENDS OF CELLULOSIC MATERIALS WITH SYNTHETIC, HYDROPHOBIC MATERIALS BY CONTACTING SAID MATERIALS WITH A SELECTED POLYAZIRIDINE COMPOUND.
Inventors
- 👤 Giuliana C Tesoro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:58
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/48; Y; Y10; Y10S; Y10S8/00; Y10S8/93
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |