US2453936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toolholder for artificial arms
Assignee: Individual
•
Filing: 1945-08-22
•
Granted: 1948-11-16
•
Expires: 1965-08-22
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Rallison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:40
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/50; A61F2/54; A61F2/58; A61F2/583; A61F2/588; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17761; Y10T279/17786; Y10T403/00; Y10T403/32; Y10T403/32549; Y10T403/32557
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US283745A
Cited
US857163A
Cited
US973985A
Cited
US1271448A
Cited
US1269413A
Cited
US1384887A
Cited
US1615169A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-16 | 1952-05-17 | 1952-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-16 | 1956-05-17 | 1956-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-16 | 1960-05-17 | 1960-11-16 | $7700.00 | Window Closed / Lapsed |