Patent US3030345A successfully refreshed from Google Patents.
US3030345A
Expired / Lapsed
US
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Process for producing sulfurcontaining polymers
Assignee: Ruhrchemie AG
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Filing: 1959-04-27
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Granted: 1962-04-17
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Expires: 1979-04-27
Abstract
No abstract record available.
Inventors
- 👤 Rottig Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:22
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A PROCESS FOR THE PRODUCTION OF SULFUR-CONTAINING POLYOLEFINS, SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE, POLYPROPYLENE AND ETHYLENE-PROPYLENE COPOLYMERS, WHICH CONSISTS OF BRINGING SAID POLYOLEFINS IN INTIMATE CONTACT WITH S2CL2 AT TEMPERATURE ABOVE 50*C. AND UP TO 150C. FOR 15 TO MINUTES.
Claim 2
Dependent Claim
42 words
A PROCESS FOR THE PRODUCTION OF SULFUR-CONTAINING POLYOLEFINS, SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE, POLYPROPYLENE AND ETHYLENE-PROPYLENE COPOLYMERS, WHICH CONSISTS OF BRINGING SAID POLYOLEFINS IN INTIMATE CONTACT WITH S2CL2 AT TEMPERATURE ABOVE 50*C. AND UP TO 150C. FOR 15 TO MINUTES.
References Cited (Backward Citations)
US2212786A
Cited
US2283627A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |