Patent US2568848A successfully refreshed from Google Patents.
US2568848A
Expired / Lapsed
US
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Method of making air bag for use in high-frequency electrical vulcanization
Assignee: Wingfoot Corp
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Filing: 1950-05-20
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Granted: 1951-09-25
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Expires: 1970-05-20
Abstract
No abstract record available.
Inventors
- 👤 Robert S Enabnit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:37
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/0601; B29D30/0654; B29C; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0861; B29D2030/0655
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |