Patent US2236385A successfully refreshed from Google Patents.
Patent US3527007A successfully refreshed from Google Patents.
US3527007A
Expired / Lapsed
US
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Steel joist connection and end connection therefor
Assignee: Individual
•
Filing: 1968-08-12
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Granted: 1970-09-08
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Expires: 1988-08-12
Abstract
No abstract record available.
Inventors
- 👤 Ira J Mcmanus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:16
CPC Classifications
E; E04; E04B; E04B5/00; E04B5/16; E04B5/32; E04B5/36; E04B5/38; E04B5/40; E04C; E04C3/00; E04C3/02; E04C3/04; E04C3/08; E04C2003/0404; E04C2003/0408; E04C2003/0421; E04C2003/0426; E04C2003/0434; E04C2003/0443; E04C2003/0452; E04C2003/0486; E04C2003/0491
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
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US2558946A
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DE828255C
Cited
US3008556A
Cited
FR1285747A
Cited
US3094813A
Cited
US3307304A
Cited
US3362121A
Cited
US3392499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |