US3376264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing stabilized polyurethane fibers
Assignee: Bayer AG
•
Filing: 1965-05-19
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Granted: 1968-04-02
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Expires: 1985-05-19
Abstract
No abstract record available.
Inventors
- 👤 Wieden Horst
- 👤 Brenschede Wilhelm
- 👤 Lenz Hans
- 👤 Rellensmann Wolfgang
- 👤 Nischk Gunther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:54
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/721; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/42; D; D01; D01F; D01F6/00; D01F6/58; D01F6/70; Y; Y10; Y10S; Y10S528/00; Y10S528/906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |