US3015292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heated draw die
Assignee: Northrop Grumman Corp
•
Filing: 1957-05-13
•
Granted: 1962-01-02
•
Expires: 1977-05-13
Abstract
No abstract record available.
Inventors
- 👤 Robert A Bridwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:47
CPC Classifications
B; B21; B21D; B21D37/00; B21D37/16; Y; Y10; Y10S; Y10S72/00; Y10S72/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1047373A
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US1393752A
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US1786496A
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US1433116A
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US1834111A
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US2014815A
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US2255116A
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US2318533A
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US2401991A
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US2372516A
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US2491717A
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US2521282A
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US2547331A
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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) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |