Patent US3220828A successfully refreshed from Google Patents.
US3220828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alloys resistant to high temperatures
Assignee: General Dynamics Corp
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Filing: 1963-04-09
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Granted: 1965-11-30
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Expires: 1983-04-09
Abstract
No abstract record available.
Inventors
- 👤 William T Kaarlela
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:18
CPC Classifications
C; C22; C22C; C22C30/00; B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/32; B23K35/325; C22C14/00; C22C27/00; C22C27/06; C22C5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
AN ALLOY CHARACTERIZED BY ITS ABILITY TO WITHSTAND HIGH TEMPERATURES AND CONSISTING OF FROM ABOUT 20% TO ABOUT 60% TITANIUM, FROM ABOUT 20% TO ABOUT 60% CHROMIUM, FROM ABOUT 5% TO ABOUT 35% PALLADIUM, AND FROM ABOUT 5% TO ABOUT 25% SILICON.
Claim 2
Dependent Claim
42 words
AN ALLOY CHARACTERIZED BY ITS ABILITY TO WITHSTAND HIGH TEMPERATURES AND CONSISTING OF FROM ABOUT 20% TO ABOUT 60% TITANIUM, FROM ABOUT 20% TO ABOUT 60% CHROMIUM, FROM ABOUT 5% TO ABOUT 35% PALLADIUM, AND FROM ABOUT 5% TO ABOUT 25% SILICON.
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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |