US2670819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Truss structure
Assignee: Individual
•
Filing: 1949-04-29
•
Granted: 1954-03-02
•
Expires: 1969-04-29
Abstract
No abstract record available.
Inventors
- 👤 Harry W Stanley
- 👤 Ralph H Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:37
CPC Classifications
E; E04; E04C; E04C5/00; E04C5/01; E04C5/06; E04C5/0636; E04C5/064
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US687967A
Cited
US1011104A
Cited
US1257827A
Cited
US2053487A
Cited
US2133574A
Cited
US2175983A
Cited
US2257762A
Cited
US2475103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |