US2601969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine wheel
Assignee: United Specialties Co
•
Filing: 1946-01-25
•
Granted: 1952-07-01
•
Expires: 1966-01-25
Abstract
No abstract record available.
Inventors
- 👤 David P Eastman
- 👤 Theodore L Swansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:38
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/30; F01D5/3069; B; B23; B23P; B23P15/00; B23P15/02; F01D5/02; F01D5/021; F01D5/08; F01D5/081; F01D5/085; F01D5/087
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US900739A
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US1345678A
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US1366119A
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DE369996C
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US1516607A
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US1801427A
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US1947347A
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US2240742A
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US2354304A
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US2421855A
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US2484274A
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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) | 1955-07-01 | 1955-12-31 | 1956-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-01 | 1959-12-31 | 1960-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-01 | 1963-12-31 | 1964-07-01 | $7700.00 | Window Closed / Lapsed |