Patent US1502903A successfully refreshed from Google Patents.
US1502903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam-turbine rotor and method of avoiding wave phenomena therein
Assignee: General Electric Co
•
Filing: 1923-02-27
•
Granted: 1924-07-29
•
Expires: 1943-02-27
Abstract
No abstract record available.
Inventors
- 👤 Campbell Wilfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:04
CPC Classifications
F; F01; F01D; F01D21/00; F01D21/003; F05; F05D; F05D2260/00; F05D2260/96; F05D2260/961; Y; Y10; Y10S; Y10S416/00; Y10S416/50
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1927-07-29 | 1928-01-28 | 1928-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-07-29 | 1932-01-28 | 1932-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-07-29 | 1936-01-28 | 1936-07-29 | $7700.00 | Window Closed / Lapsed |