US2503608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weldable nickel base alloy
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1949-03-17
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Granted: 1950-04-11
•
Expires: 1969-03-17
Abstract
No abstract record available.
Inventors
- 👤 Robert T Banister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:23
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/03; C22C19/05; C22C19/051; C22C19/053
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A READILY WELDABLE NICKEL-BASE ALLOY ADAPTED TO WITHSTAND THE COMBUSTION OF A LEADED FUEL IN A COMBUSTION ENGINE AND SUITABLE FOR USE IN EXHAUST VALVES FOR INTERNAL COMBUSTION ENGINES, HAVING THE FOLLOWING COMPOSITION BY WEIGHT:
Claim 2
Dependent Claim
35 words
A READILY WELDABLE NICKEL-BASE ALLOY ADAPTED TO WITHSTAND THE COMBUSTION OF A LEADED FUEL IN A COMBUSTION ENGINE AND SUITABLE FOR USE IN EXHAUST VALVES FOR INTERNAL COMBUSTION ENGINES, HAVING THE FOLLOWING COMPOSITION BY WEIGHT:
References Cited (Backward Citations)
US1540928A
Cited
US1572996A
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US2019687A
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US2299871A
Cited
US2400255A
Cited
US2392821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-10 | 1953-10-10 | 1954-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-10 | 1957-10-10 | 1958-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-10 | 1961-10-10 | 1962-04-11 | $7700.00 | Window Closed / Lapsed |