US3740215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing a hot worked body
Assignee: Allegheny Ludlum Corp
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Filing: 1970-08-24
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Granted: 1973-06-19
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Expires: 1990-08-24
Abstract
Abstract A METHOD FOR PRODUCING A HOT WORKED BODY HAVING A LOW INCIDENCE OF OXIDE INCLUSIONNS. IT COMPRISES THE STEPS OF CONSOLIDATING POWDER COMPRISED OF METALLIC PARTICLES INTO A POROUS BODY, SUBSTANTIALLY SEALING THE SURFACE OF SAID BODY BY CLOSING SURFACE PORES, HEATING SAID BODY, AND HOT WORKING SAID BODY.
Inventors
- 👤 D Burk
- 👤 O Reen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:15
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/12; B22F3/1208; B22F3/1258; B22F3/1266; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12021
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) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |