US2612243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Partition construction
Assignee: Individual
•
Filing: 1949-10-08
•
Granted: 1952-09-30
•
Expires: 1969-10-08
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:29
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/76; E04B2/78
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2134389A
Cited
US866481A
Cited
US1558400A
Cited
US1724394A
Cited
FR721105A
Cited
US2113067A
Cited
US2079635A
Cited
GB486612A
Cited
US2220690A
Cited
US2170637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-30 | 1956-03-31 | 1956-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-30 | 1960-03-31 | 1960-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-30 | 1964-03-31 | 1964-09-30 | $7700.00 | Window Closed / Lapsed |