Patent US2448924A successfully refreshed from Google Patents.
US2448924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bed rest
Assignee: Individual
•
Filing: 1945-05-30
•
Granted: 1948-09-07
•
Expires: 1965-05-30
Abstract
No abstract record available.
Inventors
- 👤 Warren R Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:40
CPC Classifications
A; A47; A47C; A47C20/00; A47C20/02; A47C20/027
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US340334A
Cited
US1314857A
Cited
GB189503494A
Cited
US815190A
Cited
US885388A
Cited
US975906A
Cited
US1250086A
Cited
US1274277A
Cited
US1302155A
Cited
US1452915A
Cited
US2105336A
Cited
US2257848A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-07 | 1952-03-08 | 1952-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-07 | 1956-03-08 | 1956-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-07 | 1960-03-08 | 1960-09-07 | $7700.00 | Window Closed / Lapsed |