US2602632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-speed bearing and turbine
Assignee: Individual
•
Filing: 1950-01-20
•
Granted: 1952-07-08
•
Expires: 1970-01-20
Abstract
No abstract record available.
Inventors
- 👤 James T Serduke
- 👤 Robert O Webster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:06
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/06; F01; F01D; F01D25/00; F01D25/18; F01D25/22
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) | 1955-07-08 | 1956-01-07 | 1956-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-08 | 1960-01-07 | 1960-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-08 | 1964-01-07 | 1964-07-08 | $7700.00 | Window Closed / Lapsed |