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US3474067A
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Self-extinguishing polyolefin compositions
Assignee: Chemische Fabrik Kalk GmbH
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Filing: 1966-02-10
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Granted: 1969-10-21
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Expires: 1986-02-10
Abstract
No abstract record available.
Inventors
- 👤 Hans Eberhard Praetzel
- 👤 Herbert Jenkner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:35
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K3/2279; C08K5/00; C08K5/02; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L23/26; C08L23/28; C08L25/00; C08L25/18
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) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |