US2749987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Die set with a tapered bushing and complementary leader pin
Assignee: Individual
•
Filing: 1953-05-01
•
Granted: 1956-06-12
•
Expires: 1973-05-01
Abstract
No abstract record available.
Inventors
- 👤 Janiszewski Kasimir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:15
CPC Classifications
B; B21; B21D; B21D37/00; B21D37/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1574355A
Cited
GB163809A
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US1729898A
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US1842071A
Cited
US1890715A
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US1926798A
Cited
US2320240A
Cited
US2523358A
Cited
US2611435A
Cited
US2459053A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |