US3484840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for melting and pouring titanium
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1968-01-26
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Granted: 1969-12-16
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Expires: 1988-01-26
Abstract
No abstract record available.
Inventors
- 👤 Nelson G Spoth
- 👤 George D Chandley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:49
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/02; H05B6/22; H05B6/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1601523A
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US2754347A
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US2564337A
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US2780666A
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US2793242A
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US2826624A
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US3036888A
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US3435878A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |