US3216975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastomers derived from hydrazino compounds of cyclic diazines
Assignee: BASF SE
•
Filing: 1964-12-03
•
Granted: 1965-11-09
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Expires: 1984-12-03
Abstract
No abstract record available.
Inventors
- 👤 Kunde Joachim
- 👤 Gehm Robert
- 👤 Weissauer Hermann
- 👤 Wellenreuther Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:13
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; Y; Y10; Y10S; Y10S528/00; Y10S528/906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3004945A
Cited
US3149998A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |