US2562227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow profile for reduced drag
Assignee: Individual
•
Filing: 1947-07-09
•
Granted: 1951-07-31
•
Expires: 1967-07-09
Abstract
No abstract record available.
Inventors
- 👤 Zobel Theodor Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:53
CPC Classifications
B; B64; B64C; B64C3/00; B64C3/10; B64C3/14; B64C21/00; B64C21/02; B64C21/08; B64C2003/146; B64C2003/148; Y; Y02; Y02T; Y02T50/00; Y02T50/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1631259A
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US1559091A
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US1742910A
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US1793702A
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US1744889A
Cited
US1962390A
Cited
GB525666A
Cited
US2408788A
Cited
US2357680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-30 | 1955-01-29 | 1955-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-30 | 1959-01-29 | 1959-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-30 | 1963-01-29 | 1963-07-31 | $7700.00 | Window Closed / Lapsed |