Patent US2653836A successfully refreshed from Google Patents.
US2653836A
Expired / Lapsed
US
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Reinforced v-band clamp
Assignee: Marmac Products Inc
•
Filing: 1948-09-04
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Granted: 1953-09-29
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Expires: 1968-09-04
Abstract
No abstract record available.
Inventors
- 👤 Clarence E Christophersen
- 👤 George A Mahoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:31
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/04; F16L23/08; F16L23/10; F16B; F16B2200/00; F16B2200/50; F16B2200/509; Y; Y10; Y10T; Y10T24/00; Y10T24/21; Y10T24/2189
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US815558A
Cited
US1093868A
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US1185487A
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US1431612A
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US1830782A
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US2148577A
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US2341828A
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US2403449A
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US2460984A
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US2409576A
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US2426423A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-28 | 1957-03-30 | 1957-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-28 | 1961-03-30 | 1961-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-28 | 1965-03-30 | 1965-09-29 | $7700.00 | Window Closed / Lapsed |