Patent US2840343A successfully refreshed from Google Patents.
US2840343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reduction of rotating tip clearance using segmented wear strips
Assignee: Individual
•
Filing: 1955-10-14
•
Granted: 1958-06-24
•
Expires: 1975-10-14
Abstract
No abstract record available.
Inventors
- 👤 Jr David E Brandt
- 👤 David R Fraser
- 👤 Frederic D Seaman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:33
CPC Classifications
F; F01; F01D; F01D11/00; F01D11/08; F01D11/12; F01D11/122; Y; Y10; Y10S; Y10S417/00; Y10S417/01
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US953674A
Cited
US1033237A
Cited
US1424242A
Cited
US2336323A
Cited
GB572059A
Cited
US2742224A
Cited
GB733918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |