Patent US3461103A successfully refreshed from Google Patents.
US3461103A
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Water dispersible polyurethane plastics prepared from cyclic compounds
Assignee: Bayer AG
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Filing: 1965-09-24
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Granted: 1969-08-12
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Expires: 1985-09-24
Abstract
No abstract record available.
Inventors
- 👤 Wolfgang Keberle
- 👤 Dieter Dieterich
- 👤 Otto Bayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:23
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08J3/07; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/0804; C08G18/0809; C08G18/0814; C08G18/0819; C08G18/0833; C08G18/83; C08J2375/00; C08J2375/04; Y; Y10; Y10S; Y10S528/00; Y10S528/904
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 |