US2253969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hard metal alloy for structures operating under pressure and/or sliding motion
Assignee: General Electric Co
•
Filing: 1940-06-08
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Granted: 1941-08-26
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Expires: 1960-06-08
Abstract
No abstract record available.
Inventors
- 👤 Dawihl Walther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:00
CPC Classifications
C; C22; C22C; C22C29/00; C22C29/02; C22C29/06; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/043; F16C2206/00; F16C2206/80; F16C2206/82; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/912; Y10S4/00; Y10S4/08
Claims Analysis
Total Claims: 0
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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) | 1944-08-25 | 1945-02-24 | 1945-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-08-25 | 1949-02-24 | 1949-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-08-25 | 1953-02-24 | 1953-08-26 | $7700.00 | Window Closed / Lapsed |