US3443348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Space frame support structures
Assignee: Unistrut International Corp
•
Filing: 1966-10-17
•
Granted: 1969-05-13
•
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
2026-10-28 00:06
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/02; E04C3/04; E04B; E04B1/00; E04B1/18; E04B1/19; E04B2001/1924; E04B2001/1933; E04B2001/1936; E04B2001/1957; E04B2001/1963; E04B2001/1975; E04B2001/1981; E04B2001/1984; E04B2001/1993; E04C2003/0404; E04C2003/0408; E04C2003/0421; E04C2003/0426; E04C2003/0434; E04C2003/0443; E04C2003/0465; E04C2003/0486; E04C2003/0495
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |