US2435306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expanding die for sizing, curling, and beading metal drums
Assignee: Individual
•
Filing: 1945-12-20
•
Granted: 1948-02-03
•
Expires: 1965-12-20
Abstract
No abstract record available.
Inventors
- 👤 Carl C Grotnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:39
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/26; B21D51/2615; B21D51/2623; B21D17/00; B21D17/02; B21D19/00; B21D19/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US354568A
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US1011193A
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US1355351A
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US1493502A
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US1645971A
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US1959369A
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US2113257A
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US2159900A
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US2211009A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-02 | 1951-08-04 | 1952-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-02 | 1955-08-04 | 1956-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-02 | 1959-08-04 | 1960-02-03 | $7700.00 | Window Closed / Lapsed |