Patent US2697274A successfully refreshed from Google Patents.
US2697274A
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US
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Method of making pressed metal clamps
Assignee: MB Skinner Co
•
Filing: 1950-05-20
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Granted: 1954-12-21
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Expires: 1970-05-20
Abstract
No abstract record available.
Inventors
- 👤 Patterson D Merrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:54
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/16; F16L55/168; F16L55/17; F16L55/172; B; B21; B21D; B21D53/00; B21D53/36; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1412; Y10T24/1441; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49789; Y10T29/49792
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) | 1957-12-20 | 1958-06-21 | 1958-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-20 | 1962-06-21 | 1962-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-20 | 1966-06-21 | 1966-12-21 | $7700.00 | Window Closed / Lapsed |