Patent US1931041A successfully refreshed from Google Patents.
US1931041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure tool
Assignee: Chicago Pneumatic Tool Co LLC
•
Filing: 1930-02-27
•
Granted: 1933-10-17
•
Expires: 1950-02-27
Abstract
No abstract record available.
Inventors
- 👤 Edward W Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:02
CPC Classifications
B; B25; B25D; B25D9/00; B25D9/14; B25D9/16; B25D9/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1936-10-16 | 1937-04-17 | 1937-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-10-16 | 1941-04-17 | 1941-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-10-16 | 1945-04-17 | 1945-10-17 | $7700.00 | Window Closed / Lapsed |