US2629140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural panel
Assignee: Individual
•
Filing: 1950-07-24
•
Granted: 1953-02-24
•
Expires: 1970-07-24
Abstract
No abstract record available.
Inventors
- 👤 Clements Macmillan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:02
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/24; E04C2/243; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; E04B1/78; E04B1/80; E04C2/30; E04C2/38; E04C2/386
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1683966A
Cited
US1540542A
Cited
US1669667A
Cited
US2125286A
Cited
US2200159A
Cited
US2149882A
Cited
US2165336A
Cited
US2307080A
Cited
US2585961A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-24 | 1956-08-25 | 1957-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-24 | 1960-08-25 | 1961-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-24 | 1964-08-25 | 1965-02-24 | $7700.00 | Window Closed / Lapsed |