Patent US2791301A successfully refreshed from Google Patents.
US2791301A
Expired / Lapsed
US
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Fastening device for panels
Assignee: ACF Industries Inc
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Filing: 1952-02-15
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Granted: 1957-05-07
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Expires: 1972-02-15
Abstract
No abstract record available.
Inventors
- 👤 Aurion M Proctor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:28
CPC Classifications
E; E04; E04F; E04F19/00; E04F19/02; E04F19/06; B; B61; B61D; B61D17/00; B61D17/04; B61D17/18; B62; B62D; B62D27/00; B62D27/02; B62D27/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1312056A
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US1307814A
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FR662556A
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US1879457A
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US1907044A
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US2053438A
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US2101344A
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US2056880A
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US2574074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-06 | 1960-11-05 | 1961-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-06 | 1964-11-05 | 1965-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-06 | 1968-11-05 | 1969-05-07 | $7700.00 | Window Closed / Lapsed |