US2796642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rigid arch joiner
Assignee: Timber Structures Inc
•
Filing: 1954-09-27
•
Granted: 1957-06-25
•
Expires: 1974-09-27
Abstract
No abstract record available.
Inventors
- 👤 Charles H Woodworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:17
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/26; E04B1/2604; E04C; E04C3/00; E04C3/38; E04C3/42; E04B2001/2644; E04B2001/2652; F; F16; F16B; F16B2200/00; F16B2200/65
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1143697A
Cited
US2653360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-24 | 1960-12-24 | 1961-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-24 | 1964-12-24 | 1965-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-24 | 1968-12-24 | 1969-06-25 | $7700.00 | Window Closed / Lapsed |