US2455217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joints of hollow beams
Assignee: Individual
•
Filing: 1944-05-27
•
Granted: 1948-11-30
•
Expires: 1964-05-27
Abstract
No abstract record available.
Inventors
- 👤 Borges Alberto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:34
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/02; E04C3/12; E04C3/16; E04C3/38; E04C3/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US20082A
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US64340A
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AT71608B
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CH79604A
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US1391122A
Cited
US1445026A
Cited
US1944099A
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US2214935A
Cited
US2248380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-30 | 1952-05-31 | 1952-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-30 | 1956-05-31 | 1956-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-30 | 1960-05-31 | 1960-11-30 | $7700.00 | Window Closed / Lapsed |