Patent US2143627A successfully refreshed from Google Patents.
US2143627A
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US
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Vulcanizing machine
Assignee: Boston Woven Hose and Rubber Co
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Filing: 1936-08-29
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Granted: 1939-01-10
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Expires: 1956-08-29
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Knowland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:32
CPC Classifications
B; B29; B29C; B29C35/00; B29C35/02; B29C35/0277; B29K; B29K2021/00
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) | 1942-01-09 | 1942-07-11 | 1943-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-01-09 | 1946-07-11 | 1947-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-01-09 | 1950-07-11 | 1951-01-10 | $7700.00 | Window Closed / Lapsed |