US2659707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curing agents for chlorosulfonated polyethylene
Assignee: EIDP Inc
•
Filing: 1951-03-23
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Granted: 1953-11-17
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Expires: 1971-03-23
Abstract
No abstract record available.
Inventors
- 👤 Orrin G Youngquist
- 👤 Malcolm A Smook
- 👤 Richard E Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:12
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/02; C08K3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A PROCESS FOR THE PREPARATION OF CURED ELASTOMERS WHICH CONSISTS OF HEATING A CHLOROSULFONATED HYDROCARBON POLYMER AT A TEMPERATURE BETWEEN 25 AND 175* C. AND UNDER A PRESSURE UP TO 1500 LBS./SQ. IN. FOR FROM A FRACTION OF A MINUTE TO 120 MINUTES IN THE PRESENCE OF CHANNEL BLACK.
Claim 2
Dependent Claim
49 words
A PROCESS FOR THE PREPARATION OF CURED ELASTOMERS WHICH CONSISTS OF HEATING A CHLOROSULFONATED HYDROCARBON POLYMER AT A TEMPERATURE BETWEEN 25 AND 175* C. AND UNDER A PRESSURE UP TO 1500 LBS./SQ. IN. FOR FROM A FRACTION OF A MINUTE TO 120 MINUTES IN THE PRESENCE OF CHANNEL BLACK.
References Cited (Backward Citations)
US2416061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |