US2849426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of carboxyl-containing polymers
Assignee: Bridgestone Firestone Inc
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Filing: 1954-01-19
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Granted: 1958-08-26
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Expires: 1974-01-19
Abstract
No abstract record available.
Inventors
- 👤 Verle A Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:49
CPC Classifications
C; C08; C08C; C08C19/00; C08C19/30; C08C19/34; C08C19/36; Y; Y10; Y10S; Y10S260/00; Y10S260/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A SULFUR-VULCANIZED CARBOXYL-CONTAINING RUBBERY POLYMER OF A CONJUGATED DIENE AND AN ETHYLENICALLY UNSATURATED MONOMER IONICALLY CROSS-LINKED BY A POLYFUNCTION REAGENT OF THE GROUP CONSISTING OF POLYVALENT METAL OXIDES, POLYVALENT METAL HYDROXIDES, POLYVALENT SALTS OF SALTS OF WEAK ACIDS, POLYAMINES AND POLYAMINE SALTS OF WEAK ACIDS CHARACTERIZED BY A HIGH GUM TENSILE STRENGTH, EXCELLENT RESISTANCE TO ABRASION AND GOOD LOW TEMPERATURE PROPERTIES.
Claim 2
Dependent Claim
61 words
A SULFUR-VULCANIZED CARBOXYL-CONTAINING RUBBERY POLYMER OF A CONJUGATED DIENE AND AN ETHYLENICALLY UNSATURATED MONOMER IONICALLY CROSS-LINKED BY A POLYFUNCTION REAGENT OF THE GROUP CONSISTING OF POLYVALENT METAL OXIDES, POLYVALENT METAL HYDROXIDES, POLYVALENT SALTS OF SALTS OF WEAK ACIDS, POLYAMINES AND POLYAMINE SALTS OF WEAK ACIDS CHARACTERIZED BY A HIGH GUM TENSILE STRENGTH, EXCELLENT RESISTANCE TO ABRASION AND GOOD LOW TEMPERATURE PROPERTIES.
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) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |