Patent US3359617A successfully refreshed from Google Patents.
US3359617A
Expired / Lapsed
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Method of making an annular spring
Assignee: Goetzewerke Friedrich Goetze AG
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Filing: 1965-05-13
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Granted: 1967-12-26
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Expires: 1985-05-13
Abstract
No abstract record available.
Inventors
- 👤 Baumler Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:40
CPC Classifications
B; B21; B21F; B21F35/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49609; Y10T29/49758; Y10T29/49826; Y10T29/49863; Y10T29/49874
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
THE METHOD OF PRODUCING A SPRING RING COMPRISING THE STEPS OF: STRESSING A LENGTH OF SPIRALLY WOUND WIRE IN AN AXIAL DIRECTION WITH A PREDETERMINED STRESS WHICH IS EQUIVALENT TO THE STRESS WHICH THE RING HAS WHEN POSITIONED IN USE, CUTTING SAID LENGTH OF WIRE WHEN STRESSED IN AN AXIAL DIRECTION TO A PREDETERMINED LENGTH WHICH IS
Claim 2
Independent Claim
57 words
THE METHOD OF PRODUCING A SPRING RING COMPRISING THE STEPS OF: STRESSING A LENGTH OF SPIRALLY WOUND WIRE IN AN AXIAL DIRECTION WITH A PREDETERMINED STRESS WHICH IS EQUIVALENT TO THE STRESS WHICH THE RING HAS WHEN POSITIONED IN USE, CUTTING SAID LENGTH OF WIRE WHEN STRESSED IN AN AXIAL DIRECTION TO A PREDETERMINED LENGTH WHICH IS
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |