US3455873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-extinguishing composition comprising polystyrene and an organic bromine compound
Assignee: Chemische Fabrik Kalk GmbH
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Filing: 1965-11-22
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Granted: 1969-07-15
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Expires: 1985-11-22
Abstract
No abstract record available.
Inventors
- 👤 Herbert Jenkner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:18
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0014; C08J9/0019; C08F; C08F12/00; C08F12/02; C08F12/04; C08F12/06; C08F12/08; C08K; C08K5/00; C08K5/02; C08J2325/00; C08J2325/02; C08J2325/04; C08J2325/06; Y; Y10; Y10S; Y10S521/00; Y10S521/907
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) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |