US2509955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Center plate construction
Assignee: ThyssenKrupp Budd Co
•
Filing: 1947-11-12
•
Granted: 1950-05-30
•
Expires: 1967-11-12
Abstract
No abstract record available.
Inventors
- 👤 Gladeon M Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:03
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/02; B61F5/16; B61F5/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1810718A
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GB303972A
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US1928740A
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DE566697C
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US2023756A
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CH170665A
Cited
US2099031A
Cited
US2045510A
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US2272426A
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US2258640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-29 | 1953-11-28 | 1954-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-29 | 1957-11-28 | 1958-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-29 | 1961-11-28 | 1962-05-30 | $7700.00 | Window Closed / Lapsed |