Patent US3597385A successfully refreshed from Google Patents.
US3597385A
Expired / Lapsed
US
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Process for the manufacture of self-extinguishing,non-glowing,filler-containing rubber blends
Assignee: Knapsack AG
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Filing: 1969-11-26
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Granted: 1971-08-03
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Expires: 1989-11-26
Abstract
Abstract PRODUCTION OF SELF-EXTINGUISHING, NON-GLOWING, FILLERCONTAINING RUBBER BLENDS WHICH ARE CAPABLE OF BEING VULCANIZED, BY INCORPORATING A FLAMEPROOFING AGENT INTO THE FILLER-CONTAINING RUBBER BLEND. THE FLAMEPROOFING AGENT IS A TERNARY MIXTURE CONSISTING OF PULVERULENT RED PHOSPHORUS, AMMONIUM BROMIDE AND A CHLORINATED PARAFFIN.
Inventors
- 👤 Kalus Komorniczyk
- 👤 Franz-Josef Dany
- 👤 Joachim Kandler
- 👤 Hans-Peter Beu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:43
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/02; C08K13/00; C08K13/02
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |