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US2741164A
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US
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Methods of and apparatus for working materials
Assignee: Rolls Royce PLC
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Filing: 1952-02-18
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Granted: 1956-04-10
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Expires: 1972-02-18
Abstract
No abstract record available.
Inventors
- 👤 Smedley John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:52
CPC Classifications
B; B23; B23C; B23C3/00; B23C3/16; B23C3/18; Y; Y10; Y10T; Y10T409/00; Y10T409/50; Y10T409/50082; Y10T409/50246
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1001908A
Cited
US1379267A
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GB168391A
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US1985752A
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US2341194A
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US2397917A
Cited
US2534230A
Cited
US2590042A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |