Patent US3192170A successfully refreshed from Google Patents.
US3192170A
Expired / Lapsed
US
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Blowing agent and foamable resinous composition containing same
Assignee: Bayer AG
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Filing: 1959-02-10
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Granted: 1965-06-29
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Expires: 1979-02-10
Abstract
No abstract record available.
Inventors
- 👤 Schmidt Karl-Ludwig
- 👤 Muller Erwin
- 👤 Scheurlen Hans
- 👤 Lober Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:58
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/06; C08J9/10; C08J9/108
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A COMPOSITION CAPABLE OF FORMING A FOAMED PLASTIC ON HEATING COMPRISING A RESIN SELECTED FROM THE GROUP CONSISTING OF SYNTHETIC AND NATURAL RUBBER HAVING INCORPORATED THEREIN 0.1 TO 30% BY WEIGHT OF A BLOWING AGENT HAVING THE FORMULA:
Claim 2
Dependent Claim
38 words
A COMPOSITION CAPABLE OF FORMING A FOAMED PLASTIC ON HEATING COMPRISING A RESIN SELECTED FROM THE GROUP CONSISTING OF SYNTHETIC AND NATURAL RUBBER HAVING INCORPORATED THEREIN 0.1 TO 30% BY WEIGHT OF A BLOWING AGENT HAVING THE FORMULA:
References Cited (Backward Citations)
CA508982A
Cited
US2410619A
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US2619489A
Cited
US2746939A
Cited
US2739134A
Cited
GB801825A
Cited
US2806035A
Cited
US2966495A
Cited
US2950280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |