Patent US2720679A successfully refreshed from Google Patents.
US2720679A
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US
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Universal die for forming tire tread
Assignee: Individual
•
Filing: 1950-08-31
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Granted: 1955-10-18
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Expires: 1970-08-31
Abstract
No abstract record available.
Inventors
- 👤 Vern C Ratliff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:01
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/52; B29C; B29C48/00; B29C48/03; B29C48/07; B29C48/08; B29C48/12; B29C48/25; B29C48/30; B29C48/305; B29C48/31; B29C48/313; Y; Y10; Y10S; Y10S264/00; Y10S264/911; Y10S264/912
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1350722A
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US686365A
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US1258874A
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US1252821A
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US1454058A
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US1922770A
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US2218751A
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US2346393A
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US2578229A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |