US2902715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion-consolidation die
Assignee: Individual
•
Filing: 1956-07-02
•
Granted: 1959-09-08
•
Expires: 1976-07-02
Abstract
No abstract record available.
Inventors
- 👤 Norman Geoffrey Bertrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:03
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/20; B30B11/201; B30B11/202; Y; Y10; Y10S; Y10S100/00; Y10S100/903; Y10S100/907; Y10S425/00; Y10S425/23
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1228495A
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US2063404A
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US2491588A
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US2461640A
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US2764952A
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US2778250A
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US2677148A
Cited
US2757621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |