Patent US3386820A successfully refreshed from Google Patents.
US3386820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum base alloy containing zirconium-chromium-manganese
Assignee: Olin Corp
•
Filing: 1966-01-26
•
Granted: 1968-06-04
•
Expires: 1986-01-26
Abstract
No abstract record available.
Inventors
- 👤 George J Jagaciak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:28
CPC Classifications
C; C22; C22C; C22C21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
AN ALUMINUM BASE ALLOY CONSISTING ESSENTIALLY OF ZIRCONIUM FROM 0.2 TO 0.7% BY WEIGHT; CHROMIUM FROM 0.1 TO 0.35% TO WEIGHT; MANGANESE FROM 0.3 TO 1.5% BY WEIGHT; BALANCE ESSENTIALLY ALUMINUM.
Claim 2
Dependent Claim
31 words
AN ALUMINUM BASE ALLOY CONSISTING ESSENTIALLY OF ZIRCONIUM FROM 0.2 TO 0.7% BY WEIGHT; CHROMIUM FROM 0.1 TO 0.35% TO WEIGHT; MANGANESE FROM 0.3 TO 1.5% BY WEIGHT; BALANCE ESSENTIALLY ALUMINUM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |