Patent US2848323A successfully refreshed from Google Patents.
US2848323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ferritic steel for high temperature use
Assignee: Birmingham Small Arms Co Ltd
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Filing: 1956-02-17
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Granted: 1958-08-19
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Expires: 1976-02-17
Abstract
No abstract record available.
Inventors
- 👤 Geoffrey T Harris
- 👤 Child Henry Cave
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:18
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/001; C22C38/18; C22C38/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
ALLOYS COMPRISING THE FOLLOWING INGREDIENTS WITHIN THE RANGES SPECIFIED:
Claim 2
Dependent Claim
9 words
ALLOYS COMPRISING THE FOLLOWING INGREDIENTS WITHIN THE RANGES SPECIFIED:
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) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |