Patent US1228344A successfully refreshed from Google Patents.
Patent US2457073A successfully refreshed from Google Patents.
US2457073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine cylinder joint
Assignee: Westinghouse Electric Corp
•
Filing: 1946-11-07
•
Granted: 1948-12-21
•
Expires: 1966-11-07
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Stearns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:56
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/24; F01D25/243; Y; Y10; Y10S; Y10S411/00; Y10S411/916
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1951-12-21 | 1952-06-21 | 1952-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-21 | 1956-06-21 | 1956-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-21 | 1960-06-21 | 1960-12-21 | $7700.00 | Window Closed / Lapsed |