US3387481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the deformation of sheet material
Assignee: Harvey Aluminum Inc
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Filing: 1967-02-27
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Granted: 1968-06-11
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Expires: 1987-02-27
Abstract
No abstract record available.
Inventors
- 👤 Leo M Harvey
- 👤 Ralph W Hilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:21
CPC Classifications
B; B21; B21K; B21K23/00; B21D; B21D39/00; B21D39/03; B21D39/031; B21D39/032; B21D51/00; B21D51/16; B21D51/38; B21D51/383; B65; B65D; B65D17/00; B65D17/28; B65D17/34; B65D17/401; B65D17/4012; F; F16; F16B; F16B5/00; F16B5/04; F16B5/045; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49938; Y10T29/49943
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) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |