Patent US3068927A successfully refreshed from Google Patents.
US3068927A
Expired / Lapsed
US
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Spring coiling machine
Assignee: Madison Management Group Inc
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Filing: 1959-02-24
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Granted: 1962-12-18
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Expires: 1979-02-24
Abstract
No abstract record available.
Inventors
- 👤 Charles R Bergevin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:46
CPC Classifications
B; B21; B21F; B21F3/00; B21F3/02; B21F3/06; B21F11/00; B21F11/005; B21F23/00; B21F23/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1973667A
Cited
US2276579A
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US2662597A
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US2760570A
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US2794477A
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US2861622A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |