Patent US6379319B1 successfully refreshed from Google Patents.
US2167634A
Expired / Lapsed
US
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Package
Assignee: Wingfoot Corp
•
Filing: 1933-08-16
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Granted: 1939-08-01
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Expires: 1953-08-16
Abstract
No abstract record available.
Inventors
- 👤 William C Calvert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:51
CPC Classifications
B; B65; B65D; B65D65/00; B65D65/38; B65D65/40; D; D06; D06M; D06M15/00; D06M15/693; D06M23/00; D06M23/06; D06M23/16; D06M23/18; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31826; Y10T428/3183
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) | 1942-07-31 | 1943-01-30 | 1943-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-07-31 | 1947-01-30 | 1947-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-07-31 | 1951-01-30 | 1951-08-01 | $7700.00 | Window Closed / Lapsed |