US2683305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molybdenum coated article and method of making
Assignee: SINTERCAST Corp
•
Filing: 1949-07-15
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Granted: 1954-07-13
•
Expires: 1969-07-15
Abstract
No abstract record available.
Inventors
- 👤 Claus G Goetzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:20
CPC Classifications
C; C23; C23C; C23C28/00; C23C28/02; C23C28/023; C23D; C23D5/00; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10S428/937; Y10S428/938; Y10S428/939; Y10S428/941; Y10S60/00; Y10S60/909; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49982; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12576; Y10T428/12674; Y10T428/12736; Y10T428/1275; Y10T428/12771; Y10T428/12806; Y10T428/12812; Y10T428/12826; Y10T428/12847; Y10T428/12854; Y10T428/12861; Y10T428/12931
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
109 words
A PROTECTIVELY SURFACED MOLYBDENUM-BASE BODY HAVING SUBSTANTIAL RESISTANCE TO CATASTROPHIC OXIDATION IN OXYGEN-CONTAINING ATMOSPHERES AT ELEVATED TEMPERATURES WHICH COMPRISES A MOLYBDENUM-BASE PORTION, AN INTERMEDIATE LAYER OF A METAL SELECTED FROM THE GROUP CONSISTING OF IRON, NICKEL, COBALT AND ALLOYS THEREOF COVERING THE EXPOSED SURFACE OF SAID PORTION, SAID INTERMEDIATE LAYER BEING MERGED INTERALLY WITH SAID MOLYBDENUM-BASE SURFACE AND BEING CHARRACTERIZED BY A DIFFUSION BARRIER ZONE CONTAINING MOLYBDENUM, AND A SURFACE LAYER OF METAL SELECTED FROM THE GROUP CONSISTING OF CHROMIUM, SILICON, ALLUMINUM, ZIRCONIUM AND ALLOYS THEREOF COVERING SAID INTERMEDIATE LAYER AND MERGED THEREWITH, WHEREBY SAID BODY IMPROVED RESISTANCE TO OXIDATION AT ELEVATED TEMPERATURE OF ABOUT 1650* F. AND HIGHER.
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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) | 1957-07-12 | 1958-01-11 | 1958-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-12 | 1962-01-11 | 1962-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-12 | 1966-01-11 | 1966-07-13 | $7700.00 | Window Closed / Lapsed |