Patent US4141834A successfully refreshed from Google Patents.
Patent US2861621A successfully refreshed from Google Patents.
US2861621A
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Coil making machine having a flexible belt former
Assignee: UNITED SPECIALTIES Co OF
•
Filing: 1955-03-25
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Granted: 1958-11-25
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Expires: 1975-03-25
Abstract
No abstract record available.
Inventors
- 👤 Wilfred W Lowther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:05
CPC Classifications
B; B21; B21F; B21F27/00; B21F27/12; B21F27/18; B21F3/00; B21F3/02; B21F3/04
Claims Analysis
Total Claims: 0
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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) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |