US1507686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for vulcanizing rubber articles
Assignee: Individual
•
Filing: 1919-12-29
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Granted: 1924-09-09
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Expires: 1939-12-29
Abstract
No abstract record available.
Inventors
- 👤 Ralph R Root
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:17
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/02; B29C33/06; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0811; B29C2035/0816; B29K; B29K2021/00; B29L; B29L2030/00; Y; Y10; Y10S; Y10S264/00; Y10S264/46
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) | 1927-09-09 | 1928-03-10 | 1928-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-09-09 | 1932-03-10 | 1932-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-09-09 | 1936-03-10 | 1936-09-09 | $7700.00 | Window Closed / Lapsed |