US3779954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Benzazimide compounds as blowing agents
Assignee: Bayer AG
•
Filing: 1972-01-19
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Granted: 1973-12-18
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Expires: 1992-01-19
Abstract
Abstract THE INVENTION RELATES TO THE USE OF COMPOUNDS OF BENZAZIMIDE OR A SUBSTITUTED BENZAZIMIDE AS BLOWING AGENTS TO PRODUCE CELLULAR AND POROUS ARTICLES BASED ON SYNTHETIC RESINS, PARTICULARLY ON THERMOPLASTIC RESINS.
Inventors
- 👤 W Wirth
- 👤 E Mueller
- 👤 H Roehr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:32
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/06; C08J9/10; C08J9/108
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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |