US3062340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Girder units and connecting members
Assignee: Individual
•
Filing: 1957-04-12
•
Granted: 1962-11-06
•
Expires: 1977-04-12
Abstract
No abstract record available.
Inventors
- 👤 Hunnebeck Emil Mauritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:07
CPC Classifications
E; E04; E04G; E04G11/00; E04G11/36; E04G11/48; E04G11/50; E04G11/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US363970A
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US1116841A
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US1176994A
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US2004907A
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US2334521A
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US2336622A
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US2376023A
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US2339098A
Cited
CH290809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |