US3359098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Consolidation by chemical sintering
Assignee: Honeywell International Inc
•
Filing: 1965-02-17
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Granted: 1967-12-19
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Expires: 1985-02-17
Abstract
No abstract record available.
Inventors
- 👤 Earl Q Teaford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:06
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/04; C23C16/045; B; B22; B22F; B22F3/00; B22F3/10; B22F3/1039; B22F3/11; B22F3/1143; B22F3/24; B22F3/26; C22; C22C; C22C1/00; C22C1/02; B22F2998/00; B22F2998/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
THE PROCESS OF PROCUDING A CHEMICALLY SINTERED, RIGID BODY, WHICH PROCESS COMPRISES: MAINTAINNG A PREDETERMINED SHAPE OF LOOSELY PACKED, REFRACTORY METAL PARTICLES AT GRADIENT TEMPERATURES OF ABOUT 300* TO 700*C., WITH A TEMPERATURE DIFFERENTIAL OF AT LEAST 50*C. BETWEEN THE LOWEST AND THE HIGHEST TEMPERATURE PORTION AND WITH PROGRESSIVELY HIGHER TEMPERATURES MAINTAINED IN SAID SHAPE IN THE DIRECTION OF HYDROGEN GAAS AND TUNGSTEN HEXAFLUORIDE VAPOR CONCURRENTLY FLOWING THROUGH INTERSTICES OF SAID PREDETERMINED SHAPE.
Claim 2
Dependent Claim
73 words
THE PROCESS OF PROCUDING A CHEMICALLY SINTERED, RIGID BODY, WHICH PROCESS COMPRISES: MAINTAINNG A PREDETERMINED SHAPE OF LOOSELY PACKED, REFRACTORY METAL PARTICLES AT GRADIENT TEMPERATURES OF ABOUT 300* TO 700*C., WITH A TEMPERATURE DIFFERENTIAL OF AT LEAST 50*C. BETWEEN THE LOWEST AND THE HIGHEST TEMPERATURE PORTION AND WITH PROGRESSIVELY HIGHER TEMPERATURES MAINTAINED IN SAID SHAPE IN THE DIRECTION OF HYDROGEN GAAS AND TUNGSTEN HEXAFLUORIDE VAPOR CONCURRENTLY FLOWING THROUGH INTERSTICES OF SAID PREDETERMINED SHAPE.
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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) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |