US2939175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-way expandable inner bead forming ring for vulcanizing presses
Assignee: Cleveland Trust Co
•
Filing: 1956-02-13
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Granted: 1960-06-07
•
Expires: 1976-02-13
Abstract
No abstract record available.
Inventors
- 👤 Frohlich Adolf
- 👤 Edward J Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:50
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/0601; B29D30/0602; B29D30/0606; B29D2030/0607; B29D2030/062; B29D2030/0621; B29D2030/0622; B29D2030/0627
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1757376A
Cited
US1734835A
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US2042498A
Cited
US2514215A
Cited
US2571258A
Cited
US2561573A
Cited
US2763317A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |