US3470094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions for preparing heat-curable fire retardant molding compositions
Assignee: Hoechst AG Werk Kalle Albert
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Filing: 1967-04-10
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Granted: 1969-09-30
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Expires: 1987-04-10
Abstract
No abstract record available.
Inventors
- 👤 Rolf Zimmermann
- 👤 Wolfram Ernst Busch
- 👤 Fritz Reiners
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:21
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/42; C; C08; C08F; C08F26/00; C08F26/06; C08F28/00; C08K; C08K5/00; C08K5/02; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477; C08K5/3492; C08K5/36; C08K5/41
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) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |