Patent US2520974A successfully refreshed from Google Patents.
Patent US3732347A successfully refreshed from Google Patents.
US3732347A
Expired / Lapsed
US
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Method for vulcanizing open end belting
Assignee: Goodrich Corp
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Filing: 1971-06-03
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Granted: 1973-05-08
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Expires: 1991-06-03
Abstract
Abstract A method for curing long lengths of reinforced elastomeric, open end, conveyor belting in a multiple-decked vulcanizing press. The portions of the belt being cured are subjected to substantially uniform stretch prior to closing the press by outrigger rollers over which the belt is trained as it passes continuously from one platen to another. When the portions between the press platens are cured, the belting is advanced longitudinally over the rollers to permit vulcanizing the portions previously extending over the rollers.
Inventors
- 👤 D Hunt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:12
CPC Classifications
B; B29; B29D; B29D29/00; B29K; B29K2021/00; B29L; B29L2031/00; B29L2031/709; B29L2031/7092
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |