US2957232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Forged powdered metal articles
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1954-07-29
•
Granted: 1960-10-25
•
Expires: 1974-07-29
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Bartlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:22
CPC Classifications
C; C22; C22C; C22C32/00; C22C32/0047; B; B22; B22F; B22F3/00; B22F3/24; Y; Y10; Y10S; Y10S75/00; Y10S75/95; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49336
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1878240A
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US1751758A
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US1891612A
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US2113355A
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US2225424A
Cited
US2520373A
Cited
US2581252A
Cited
US2712688A
Cited
US2714245A
Cited
US2757446A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |