Patent US3400173A successfully refreshed from Google Patents.
US3400173A
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Urethane polymers containing graft copolymer of vinyl chlordide or saponified ethlene-vinyl ester copolymer
Assignee: Bayer AG
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Filing: 1965-12-13
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Granted: 1968-09-03
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Expires: 1985-12-13
Abstract
No abstract record available.
Inventors
- 👤 Reischl Artur
- 👤 Hardt Deitrich
- 👤 Zorn Bruno
- 👤 Bartl Herbert
- 👤 Speicher Wolfgang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:14
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/62; C08G18/6212; C08G18/6275; C08G18/63; C08G18/633; C08G18/638; C08G18/70; C08G18/72; C08G18/77; C08G18/78; C08G18/7806; C08G18/7818; C08G18/7831; C08G18/80; C08G18/8003; C08G18/8006; C08G18/8009; C08G18/8022; C08G18/8029; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/31504; Y10T428/31507; Y10T428/31533; Y10T428/31725; Y10T428/31739; Y10T428/31743; Y10T428/31786; Y10T428/31855; Y10T428/31935
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) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |