US3190749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alloy article having a porous outer surface and process of making same
Assignee: EIDP Inc
•
Filing: 1963-07-23
•
Granted: 1965-06-22
•
Expires: 1983-07-23
Abstract
No abstract record available.
Inventors
- 👤 Richard A Fleming
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:52
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/08; C23; C23C; C23C10/00; C23C10/18; C23C10/20; C23C10/22; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12458; Y10T428/12479
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
94 words
AN ARTICLE COMPRISING AN ALLOY CONSISTING ESSENTIALLY OF FROM UP TO 80% BY WEIGHT NICKEL AND THE REMAINDER BEING ESSENTIALLY AT LEAST ONE ADDITIONAL ALLOYING METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, VANADIUM, NIOBIUM, TANTALUM, CHROMIUM, MOLYBENUM, TUNGSTEN, MANGANESE, IRON, AND COBALT; SAID ARTICLE BEING CHARACTERIZED IN HAVING A POROUS OUTER SURFACE CONTAINING INTERSTICES ALONG THE GRAIN BOUNDARIES EXTENDING INWARDLY IN A DIRECTION NORMAL TO THE SURFACE, SAID INTERSTICES BEING SUBSTANTIALLY CIRCULAR IN CROSS SECTION WITH THE TOTAL CROSS SECTIONAL AREA OF THE INDIVIDUAL INTERSTICES BEING ESSENTIALLY CONSTANT ALONG THEIR INWARD LENGTH.
References Cited (Backward Citations)
US2740730A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |