US3457689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ridge connector for pitched truss joists
Assignee: Individual
•
Filing: 1967-12-26
•
Granted: 1969-07-29
•
Expires: 1987-12-26
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Troutner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:02
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/02; E04C3/12; E04C3/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US649830A
Cited
US1665782A
Cited
DE599817C
Cited
GB547023A
Cited
US2280121A
Cited
FR54073E
Cited
FR84235E
Cited
US3178780A
Cited
US3252469A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |