Patent US2823443A successfully refreshed from Google Patents.
US2823443A
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US
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Automatic width controller
Assignee: Bridgestone Firestone Inc
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Filing: 1955-08-03
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Granted: 1958-02-18
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Expires: 1975-08-03
Abstract
No abstract record available.
Inventors
- 👤 Harold F Umstott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:09
CPC Classifications
D; D03; D03J; D03J1/00; D03J1/22; D03J1/223; B; B29; B29D; B29D30/00; B29D30/06; B29D30/38; D06; D06C; D06C3/00; D06C3/06; D06C3/067
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2064993A
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US2496312A
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US2476070A
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US2492737A
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US2547975A
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US2638656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-17 | 1961-08-19 | 1962-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-17 | 1965-08-19 | 1966-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-17 | 1969-08-19 | 1970-02-18 | $7700.00 | Window Closed / Lapsed |