US3004944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of masticating rubber and product thereof
Assignee: Bayer AG
•
Filing: 1958-08-08
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Granted: 1961-10-17
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Expires: 1978-08-08
Abstract
No abstract record available.
Inventors
- 👤 Kempermann Theo
- 👤 Lober Friedrich
- 👤 Klappcrt Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:16
CPC Classifications
C; C09; C09B; C09B47/00; C09B47/04; C09B47/045; C08; C08K; C08K5/00; C08K5/0091; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
PROCESS FOR THE MASTICATION OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER, RUBBERY DIOLEFIN HOMOPOLYMERS, AND RUBBERY COPOLYMERS OF DIOLEFINS AND MONOOLEFINS WHICH COMPRISES MASTICATING THE SAME IN THE PRESENCE OF METAL-CONTAINING COMPOUNDS WHICH HAVE A 16-MEMBERED MACROCYCLIC RING SYSTEM IN WHICH 8 CARBON ATOMS AND 8 NITROGEN ATOMS ARE ARRANGED ALTERNATIVELY AND IN WHICH EACH SECOND NITROGEN ATOM FORMS A HETEROCYCLIC RING WITH THE TWO ADJACENT CARBON ATOMS BY MEANS OF A LINKAGE SELECTED FROM ONE OF THE FOLLOWING GROUPINGS:
Claim 2
Dependent Claim
84 words
PROCESS FOR THE MASTICATION OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER, RUBBERY DIOLEFIN HOMOPOLYMERS, AND RUBBERY COPOLYMERS OF DIOLEFINS AND MONOOLEFINS WHICH COMPRISES MASTICATING THE SAME IN THE PRESENCE OF METAL-CONTAINING COMPOUNDS WHICH HAVE A 16-MEMBERED MACROCYCLIC RING SYSTEM IN WHICH 8 CARBON ATOMS AND 8 NITROGEN ATOMS ARE ARRANGED ALTERNATIVELY AND IN WHICH EACH SECOND NITROGEN ATOM FORMS A HETEROCYCLIC RING WITH THE TWO ADJACENT CARBON ATOMS BY MEANS OF A LINKAGE SELECTED FROM ONE OF THE FOLLOWING GROUPINGS:
References Cited (Backward Citations)
US2860116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |