US3461102A
Expired / Lapsed
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Fibers from elastomeric polyurethanes containing tertiary amino groups
Assignee: Bayer AG
•
Filing: 1965-08-17
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Granted: 1969-08-12
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Expires: 1985-08-17
Abstract
No abstract record available.
Inventors
- 👤 Harald Oertel
- 👤 Heinrich Rinke
- 👤 Fritz Moosmuller
- 👤 Friedrich-Karl Rosendahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:21
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/80; C08G18/8003; C08G18/8006; C08G18/8041; C08G18/08; C08G18/10; C08G18/12; C08G18/28; C08G18/30; C08G18/32; C08G18/3271; C08G18/3275; C08G18/3287; C08G18/329; C08G18/3293; Y; Y10; Y10S; Y10S528/00; Y10S528/903
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) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |