US2443548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable partition
Assignee: Individual
•
Filing: 1944-01-07
•
Granted: 1948-06-15
•
Expires: 1964-01-07
Abstract
No abstract record available.
Inventors
- 👤 Philip P S Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:56
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/82; E04B2/821; E04B2/822
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE472836C
Cited
US1876528A
Cited
US1616768A
Cited
US1706470A
Cited
US1758489A
Cited
US2107624A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-15 | 1951-12-15 | 1952-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-15 | 1955-12-15 | 1956-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-15 | 1959-12-15 | 1960-06-15 | $7700.00 | Window Closed / Lapsed |