Patent US2289618A successfully refreshed from Google Patents.
US2289618A
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Sealing device and method
Assignee: Wingfoot Corp
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Filing: 1940-01-16
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Granted: 1942-07-14
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Expires: 1960-01-16
Abstract
No abstract record available.
Inventors
- 👤 Foster J Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:47
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/22; B29C65/221; B29C65/222; B29C65/223; B29C65/228; B29C66/00; B29C66/003; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/344; B29C66/348; B29C66/40; B29C66/41; B29C66/43; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81427; B29C66/818; B29C66/8181; B29C66/81811; B29C66/8182; B29C66/81821; B29C35/00; B29C35/16; B29C66/70; B29C66/71; B29C66/81411; B29C66/81421; B29C66/81422
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) | 1945-07-13 | 1946-01-12 | 1946-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-07-13 | 1950-01-12 | 1950-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-07-13 | 1954-01-12 | 1954-07-14 | $7700.00 | Window Closed / Lapsed |