Patent US1270933A successfully refreshed from Google Patents.
US1270933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination blanking and forming die.
Assignee: Individual
•
Filing: 1917-03-20
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Granted: 1918-07-02
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Expires: 1937-03-20
Abstract
No abstract record available.
Inventors
- 👤 Charles C Elsener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:47
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/38; B21D51/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1921-07-01 | 1921-12-31 | 1922-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-07-01 | 1925-12-31 | 1926-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-07-01 | 1929-12-31 | 1930-07-02 | $7700.00 | Window Closed / Lapsed |