US2677398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for crimping wire for spring wire stringers and for forming loop springs on the ends of the wires
Assignee: Stubnitz Greene Spring Corp
•
Filing: 1951-03-10
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Granted: 1954-05-04
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Expires: 1971-03-10
Abstract
No abstract record available.
Inventors
- 👤 John E Medendorp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:29
CPC Classifications
B; B21; B21F; B21F3/00; B21F3/02; B21F3/04; B21D; B21D11/00; B21D11/06; B21D11/07; B21F1/00; B21F35/00; B21F35/04; B21F45/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1282530A
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US1882243A
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US2517436A
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US2449263A
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US2491893A
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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) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |