Patent NL36251C successfully refreshed from Google Patents.
US3255078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the treatment of fiber articles of synthetic polyamides and composition produced
Assignee: Bayer AG
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Filing: 1961-07-13
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Granted: 1966-06-07
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Expires: 1981-07-13
Abstract
No abstract record available.
Inventors
- 👤 Heinroth Karl-August
- 👤 Schnegg Robert
- 👤 Steinfatt Fritz
- 👤 Wiegand Christian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:25
CPC Classifications
D; D06; D06M; D06M16/00; Y; Y10; Y10S; Y10S8/00; Y10S8/21
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
41 words
A METHOD FOR IMPARTING ANTIMICROBIAL PROPERTIES TO FIBER ARTICLES OF LONG-CHAIN SYNTHETIC POLYAMIDES HAVING RECURRING AMIDE GROUPS AS AN INTEGRAL PART OF THE MAIN POLYMER CHAIN, COMPRISING CONTACTING THE FIBER ARTICLES WITH AN ACTIVE AMOUNT OF A COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
FR1248412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |