US2421665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steel barrel plug wrench
Assignee: Individual
•
Filing: 1943-09-01
•
Granted: 1947-06-03
•
Expires: 1963-09-01
Abstract
No abstract record available.
Inventors
- 👤 George B Umbdenstock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:31
CPC Classifications
B; B25; B25B; B25B13/00; B25B13/02; B25B13/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US66643A
Cited
US494579A
Cited
FR450878A
Cited
FR542186A
Cited
US1717241A
Cited
FR746310A
Cited
US2148573A
Cited
AT154825B
Cited
US2383573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-02 | 1950-12-02 | 1951-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-02 | 1954-12-02 | 1955-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-02 | 1958-12-02 | 1959-06-03 | $7700.00 | Window Closed / Lapsed |