Patent US2765022A successfully refreshed from Google Patents.
US2765022A
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Spring coiling machine
Assignee: Madison Management Group Inc
•
Filing: 1954-12-16
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Granted: 1956-10-02
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Expires: 1974-12-16
Abstract
No abstract record available.
Inventors
- 👤 Charles R Bergevin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:00
CPC Classifications
B; B21; B21F; B21F3/00; B21F3/02; B21F3/06; B21F3/04; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1503; Y10T74/1508; Y10T74/1515; Y10T74/1516; Y10T74/1526; Y10T74/1532; Y10T74/1534; Y10T74/1537; Y10T74/1539; Y10T83/00; Y10T83/444; Y10T83/463
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US43558A
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US236717A
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US285372A
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AT20707B
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FR355657A
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US1413970A
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US1516734A
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US1555745A
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US2119002A
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US2170984A
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US2337420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |