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US3366362A
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US
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Metal shaping tools includng columnar structures
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1965-01-04
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Granted: 1968-01-30
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Expires: 1985-01-04
Abstract
No abstract record available.
Inventors
- 👤 George D Chandley
- 👤 Donald G Fleck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:49
CPC Classifications
B; B22; B22D; B22D27/00; B22D27/04; B22D27/045; Y; Y10; Y10T; Y10T407/00; Y10T407/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB870212A
Cited
US3008855A
Cited
US3204301A
Cited
US3233294A
Cited
US3233295A
Cited
US3260505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-29 | 1971-07-31 | 1972-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-29 | 1975-07-31 | 1976-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-29 | 1979-07-31 | 1980-01-30 | $7700.00 | Window Closed / Lapsed |