US2955937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation resistant chromium alloy
Assignee: Individual
•
Filing: 1958-01-21
•
Granted: 1960-10-11
•
Expires: 1978-01-21
Abstract
No abstract record available.
Inventors
- 👤 James A Mcgurty
- 👤 John F Collins
- 👤 Vincent P Calkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:11
CPC Classifications
C; C22; C22C; C22C27/00; C22C27/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
A BINARY ALLOY OF CHROMIUM AND YTTRIUM CONSISTING OF FROM ABOUT 0.2 WEIGHT PERCENT TO ABOUT 2.5 WEIGHT PERCENT YTTRIUM, THE BALANCE BEING CHROMIUM.
Claim 2
Dependent Claim
24 words
A BINARY ALLOY OF CHROMIUM AND YTTRIUM CONSISTING OF FROM ABOUT 0.2 WEIGHT PERCENT TO ABOUT 2.5 WEIGHT PERCENT YTTRIUM, THE BALANCE BEING CHROMIUM.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |