Patent US4380590A successfully refreshed from Google Patents.
US2452268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor hand tool assembly
Assignee: Individual
•
Filing: 1945-06-29
•
Granted: 1948-10-26
•
Expires: 1965-06-29
Abstract
No abstract record available.
Inventors
- 👤 Schumann Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:35
CPC Classifications
B; B25; B25F; B25F5/00; B25F5/008; B24; B24B; B24B23/00; B24B23/02; Y; Y10; Y10S; Y10S29/00; Y10S29/067; Y10S29/083; Y10S415/00; Y10S415/904; Y10T; Y10T409/00; Y10T409/30; Y10T409/304088; Y10T409/306216; Y10T409/306552; Y10T409/306608
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1990017A
Cited
US2170036A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-26 | 1952-04-26 | 1952-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-26 | 1956-04-26 | 1956-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-26 | 1960-04-26 | 1960-10-26 | $7700.00 | Window Closed / Lapsed |