Patent US3069398A successfully refreshed from Google Patents.
US3069398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the vulcanization of rubber
Assignee: Bayer AG
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Filing: 1960-06-03
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Granted: 1962-12-18
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Expires: 1980-06-03
Abstract
No abstract record available.
Inventors
- 👤 Freytag Helmut
- 👤 Lober Lieselotte
- 👤 Pohle Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:45
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; C08K5/0025
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
31 words
IN THE PROCESS FOR THE VULCANIZATION OF NATURAL RUBBER AND VULCANIZABLE ELASTOMERIC HOMOPOLYMERS AND COPOLYMERS OF CONJUGATED DIENES THE IMPROVEMENT WHICH COMPRISES USING AS VULCANIZATION ACCELERATORS COMPOUNDS OF THE GENERAL FORMULA
References Cited (Backward Citations)
US1996011A
Cited
US2460393A
Cited
US2495085A
Cited
US2700659A
Cited
US2762814A
Cited
US2891960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |