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US2985320A
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US
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Assignee: Baldwin Lima Hamilton Corp
•
Filing: 1956-11-09
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Granted: 1961-05-23
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Expires: 1976-11-09
Abstract
No abstract record available.
Inventors
- 👤 Francis J Kent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:42
CPC Classifications
B; B21; B21C; B21C33/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB190801096A
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US1178679A
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US1768866A
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DE636744C
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GB447884A
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US2429525A
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US2688400A
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US2811058A
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US2893555A
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US2919039A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |