US2943587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming sheet metal articles having compound curves
Assignee: Saab AB
•
Filing: 1956-10-23
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Granted: 1960-07-05
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Expires: 1976-10-23
Abstract
No abstract record available.
Inventors
- 👤 John H S Samuelsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:34
CPC Classifications
B; B21; B21D; B21D22/00; B21D22/10; Y; Y10; Y10S; Y10S72/00; Y10S72/701
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |