Patent US2522038A successfully refreshed from Google Patents.
US2522038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wrench
Assignee: Individual
•
Filing: 1947-09-26
•
Granted: 1950-09-12
•
Expires: 1967-09-26
Abstract
No abstract record available.
Inventors
- 👤 David B Houghton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:55
CPC Classifications
B; B25; B25B; B25B13/00; B25B13/48; B25B13/481
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US680971A
Cited
US906040A
Cited
US966130A
Cited
US1058295A
Cited
US1276953A
Cited
US1498713A
Cited
US1500893A
Cited
US1972239A
Cited
US2337368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |