US3051567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making powdered metal articles
Assignee: Fansteel Inc
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Filing: 1958-07-28
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Granted: 1962-08-28
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Expires: 1978-07-28
Abstract
No abstract record available.
Inventors
- 👤 Paul F Ziegler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:49
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/02; B22F3/04; Y; Y10; Y10S; Y10S264/00; Y10S264/50; Y10S425/00; Y10S425/026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A METHOD OF FORMING SHAPED ARTICLES OF POWDERED METAL, COMPRISING DISPOSING A FLEXIBLE FLUID IMPERVIOUS LINER OF SHEET MATERIAL IN A HOLLOW SUBSTANTIALLY RIGID FORM OF THE DESIRED SHAPE AND SIZE FOR THE ARTICLE TO BE FORMED AND HAVING FLUID LEAKAGE PATHS THEREIN, FILLING SAID LINER WITH POWDERED METAL AND SEALING THE ENDS THEREOF, APPLYING FLUID PRESSURE TO SAID FORM AND SAID LINER TO PRESS SAID POWDER INTO A GREEN COMPACT OF SUBSTANTIALLY THE SAME SIZE AND SHAPE AS THE INTERIOR OF THE HOLLOW FORM.
Claim 2
Independent Claim
85 words
A METHOD OF FORMING SHAPED ARTICLES OF POWDERED METAL, COMPRISING DISPOSING A FLEXIBLE FLUID IMPERVIOUS LINER OF SHEET MATERIAL IN A HOLLOW SUBSTANTIALLY RIGID FORM OF THE DESIRED SHAPE AND SIZE FOR THE ARTICLE TO BE FORMED AND HAVING FLUID LEAKAGE PATHS THEREIN, FILLING SAID LINER WITH POWDERED METAL AND SEALING THE ENDS THEREOF, APPLYING FLUID PRESSURE TO SAID FORM AND SAID LINER TO PRESS SAID POWDER INTO A GREEN COMPACT OF SUBSTANTIALLY THE SAME SIZE AND SHAPE AS THE INTERIOR OF THE HOLLOW FORM.
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) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |