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Patent US2993731A successfully refreshed from Google Patents.
US2993731A
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Assignee: Dura Corp
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Filing: 1958-07-28
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Granted: 1961-07-25
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Expires: 1978-07-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles C Miles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:33
CPC Classifications
B; B60; B60J; B60J7/00; B60J7/185; B60J7/1851; Y; Y10; Y10S; Y10S292/00; Y10S292/05; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0825; Y10T292/0826
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2305715A
Cited
US2309926A
Cited
US2411945A
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US2509623A
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US2770489A
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US2852292A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |