Patent US597766A successfully refreshed from Google Patents.
Patent US2616644A successfully refreshed from Google Patents.
US2616644A
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US
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Axially tightening clamp
Assignee: Marmac Products Inc
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Filing: 1951-06-19
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Granted: 1952-11-04
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Expires: 1971-06-19
Abstract
No abstract record available.
Inventors
- 👤 Clarence E Christophersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:27
CPC Classifications
G; G01; G01D; G01D11/00; G01D11/30; G01D11/305; F; F16; F16L; F16L3/00; F16L3/08; F16L3/12; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1412
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |