US2776030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interlocking joint for angle irons
Assignee: Individual
•
Filing: 1953-12-23
•
Granted: 1957-01-01
•
Expires: 1973-12-23
Abstract
No abstract record available.
Inventors
- 👤 William W Bush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:55
CPC Classifications
A; A47; A47B; A47B57/00; A47B57/30; Y; Y10; Y10T; Y10T403/00; Y10T403/46; Y10T403/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1694656A
Cited
US1770500A
Cited
US1808082A
Cited
GB333004A
Cited
US1924989A
Cited
US2388157A
Cited
US2611460A
Cited
US2677470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |