US2770841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of continuous vulcanizing of rubber
Assignee: Crown Cork and Seal Co Inc
•
Filing: 1952-09-04
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Granted: 1956-11-20
•
Expires: 1972-09-04
Abstract
No abstract record available.
Inventors
- 👤 Giles B Cooke
- 👤 Mordecai N Timbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:18
CPC Classifications
B; B29; B29C; B29C35/00; B29C35/02; B29C35/0277; B29C35/04; B29C48/00; B29C48/03; B29C48/09; B29K; B29K2021/00; Y; Y10; Y10S; Y10S100/00; Y10S100/903; Y10S100/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB105426A
Cited
US738295A
Cited
US1528263A
Cited
US1770396A
Cited
US1780948A
Cited
US2386796A
Cited
US2666947A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |