US2989019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of deep drawing sheet material
Assignee: ThyssenKrupp Budd Co
•
Filing: 1957-05-20
•
Granted: 1961-06-20
•
Expires: 1977-05-20
Abstract
No abstract record available.
Inventors
- 👤 Ii Herbert D Van Sciver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:19
CPC Classifications
B; B21; B21D; B21D22/00; B21D22/20; B21D22/22; Y; Y10; Y10S; Y10S220/00; Y10S220/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US55944A
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US2735390A
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US1528365A
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US2312749A
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US2403339A
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US2581663A
Cited
US2642023A
Cited
US2605731A
Cited
US2725025A
Cited
US2783728A
Cited
US2781015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |