Patent US2683922A successfully refreshed from Google Patents.
US2683922A
Expired / Lapsed
US
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Method of making clamping rings
Assignee: Motors Liquidation Co
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Filing: 1952-01-14
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Granted: 1954-07-20
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Expires: 1972-01-14
Abstract
No abstract record available.
Inventors
- 👤 Forest L Zion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:49
CPC Classifications
B; B21; B21F; B21F37/00; B21F37/02; F; F16; F16B; F16B21/00; F16B21/10; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49789; Y10T29/49794
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) | 1957-07-19 | 1958-01-18 | 1958-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-19 | 1962-01-18 | 1962-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-19 | 1966-01-18 | 1966-07-20 | $7700.00 | Window Closed / Lapsed |