Patent US2900254A successfully refreshed from Google Patents.
US2900254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing sintered metal sheets
Assignee: GTE Sylvania Inc
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Filing: 1954-10-13
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Granted: 1959-08-18
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Expires: 1974-10-13
Abstract
No abstract record available.
Inventors
- 👤 Hyman I Raiklen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:48
CPC Classifications
B; B22; B22F; B22F5/00; B22F5/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN THE MANUFACTURING OF A METALLIC SHEET FROM METAL POWER, THE STEP INCLUDING UNIFORMLY SPREADING A LOOSE NON-COMPACTED LAYER OF METAL POWDER ONTO A HORIZONTALLY MOVABLE SHEET OF A MATERIAL WHICH WILL BE DESTROYED AT TEMPERATURES WHICH CAUSE SAID METAL TO SINTER AND HAVING RIGIDITY AND STRENGTH SUFFICENT TO SUPPORT SAID NON-COMPACTED LAYER, AND SHEET ID CONTINOUSLY FORMED WHICH OF SAID LAYER AND SHEET IS CONTINOUSLY FORMED WHICH COMPOSITE IS SELF-SUSTAINING, HORIZONTALLY PASSING SAID COMPOSITE THROUGH A HEAT-TREATMENT APPARATUS TO CAUSE SAID LAYER TO SINTER AND TO BURN OFF SAID HEAT-DESTROYABLE SHEET, AND REMOVING ANY RESIDUES OF SAID HEAT-DESTROYABLE SHEET FROM THE SINTERED LAYER.
Claim 2
Dependent Claim
104 words
IN THE MANUFACTURING OF A METALLIC SHEET FROM METAL POWER, THE STEP INCLUDING UNIFORMLY SPREADING A LOOSE NON-COMPACTED LAYER OF METAL POWDER ONTO A HORIZONTALLY MOVABLE SHEET OF A MATERIAL WHICH WILL BE DESTROYED AT TEMPERATURES WHICH CAUSE SAID METAL TO SINTER AND HAVING RIGIDITY AND STRENGTH SUFFICENT TO SUPPORT SAID NON-COMPACTED LAYER, AND SHEET ID CONTINOUSLY FORMED WHICH OF SAID LAYER AND SHEET IS CONTINOUSLY FORMED WHICH COMPOSITE IS SELF-SUSTAINING, HORIZONTALLY PASSING SAID COMPOSITE THROUGH A HEAT-TREATMENT APPARATUS TO CAUSE SAID LAYER TO SINTER AND TO BURN OFF SAID HEAT-DESTROYABLE SHEET, AND REMOVING ANY RESIDUES OF SAID HEAT-DESTROYABLE SHEET FROM THE SINTERED LAYER.
References Cited (Backward Citations)
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US2337588A
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US2261196A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |