Patent US2697699A successfully refreshed from Google Patents.
US2697699A
Expired / Lapsed
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Rubber composition reinforced with a clay which contains olefinically unsaturated cations
Assignee: Elastic Colloid Research Corp
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Filing: 1951-04-26
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Granted: 1954-12-21
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Expires: 1971-04-26
Abstract
No abstract record available.
Inventors
- 👤 Morris I Cohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:26
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34; C08K3/346; C08K9/00; C08K9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A COMPOSITION OF MATTER COMPRISING A VULCANIZABLE, ETHYLENICALLY UNSATURATED, RUBBERY MATERIAL AND A MODIFIED CLAY FILLER HAVING THE INORGANIC CATIONS THEREOF REPLACED BY SUBSTITUTED ORGANIC OLEFINIC CATIONS SELECTED FROM THE GROUP CONSISTING OF R2NH2+, R3NH+, R4N+, AND RNH3+, WHERE R IS AN OLEFINICALLY UNSATURATED RADICAL HAVING FROM 3 TO 18 CARBON ATOMS.
Claim 2
Dependent Claim
52 words
A COMPOSITION OF MATTER COMPRISING A VULCANIZABLE, ETHYLENICALLY UNSATURATED, RUBBERY MATERIAL AND A MODIFIED CLAY FILLER HAVING THE INORGANIC CATIONS THEREOF REPLACED BY SUBSTITUTED ORGANIC OLEFINIC CATIONS SELECTED FROM THE GROUP CONSISTING OF R2NH2+, R3NH+, R4N+, AND RNH3+, WHERE R IS AN OLEFINICALLY UNSATURATED RADICAL HAVING FROM 3 TO 18 CARBON ATOMS.
References Cited (Backward Citations)
US2531396A
Cited
US2578605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-20 | 1958-06-21 | 1958-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-20 | 1962-06-21 | 1962-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-20 | 1966-06-21 | 1966-12-21 | $7700.00 | Window Closed / Lapsed |