US2657147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for vulcanizing rubber
Assignee: Individual
•
Filing: 1948-11-23
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Granted: 1953-10-27
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Expires: 1968-11-23
Abstract
No abstract record available.
Inventors
- 👤 Edward A Van Valkenburgh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:56
CPC Classifications
C; C08; C08L; C08L9/00; C08L9/06; C08L21/00; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/18; C08L93/00; C08L93/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A COMPOSITION USEFUL IN THE COMPOUNDING AND VULCANIZATION OF RUBBER CONSISTING ESSENTIALLY OF TALL OIL ACIDS COMPOUNDED WITH FROM 2 TO 20% OF ANILINE BASED ON THE WEIGHT OF THE TALL OIL ACIDS, AND WITH AN AMOUNT OF COMPATIBLE LIQUID HYDROCARBON SOLVENT OF FROM 10 TO 20% OF THE WEIGHT OF THE TALL OIL AND ANILINE, SAID COMPOSITION BEING A HOMOGENEOUS LIQUID COMPOSITION.
Claim 2
Dependent Claim
63 words
A COMPOSITION USEFUL IN THE COMPOUNDING AND VULCANIZATION OF RUBBER CONSISTING ESSENTIALLY OF TALL OIL ACIDS COMPOUNDED WITH FROM 2 TO 20% OF ANILINE BASED ON THE WEIGHT OF THE TALL OIL ACIDS, AND WITH AN AMOUNT OF COMPATIBLE LIQUID HYDROCARBON SOLVENT OF FROM 10 TO 20% OF THE WEIGHT OF THE TALL OIL AND ANILINE, SAID COMPOSITION BEING A HOMOGENEOUS LIQUID COMPOSITION.
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) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |