US2631004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine rotor
Assignee: United Specialties Co
•
Filing: 1948-07-09
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Granted: 1953-03-10
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Expires: 1968-07-09
Abstract
No abstract record available.
Inventors
- 👤 Theodore L Swansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:09
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/30; F01D5/02; F01D5/021; F01D5/3023; F01D5/3046; F01D5/3069
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-09 | 1956-09-08 | 1957-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-09 | 1960-09-08 | 1961-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-09 | 1964-09-08 | 1965-03-10 | $7700.00 | Window Closed / Lapsed |