Patent US3415554A successfully refreshed from Google Patents.
US3415554A
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US
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Structural joint assembly and connectors therefor
Assignee: Unistrut Corp
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Filing: 1966-10-17
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Granted: 1968-12-10
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Expires: 1986-10-17
Abstract
No abstract record available.
Inventors
- 👤 Hristo V Papayoti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:11
CPC Classifications
E; E04; E04G; E04G7/00; E04G7/02; E04G7/06; E04G7/24; E04G7/26; F; F16; F16B; F16B12/00; F16B12/10; F16B12/28; F16B12/30; F16B7/00; F16B7/04; F16B7/044; F16B7/048; F16B7/0493; Y; Y10; Y10T; Y10T403/00; Y10T403/71; Y10T403/7123; Y10T403/7194; Y10T403/75
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |