Patent US2532823A successfully refreshed from Google Patents.
US2532823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor tool
Assignee: Individual
•
Filing: 1949-08-25
•
Granted: 1950-12-05
•
Expires: 1969-08-25
Abstract
No abstract record available.
Inventors
- 👤 Helmut W Schumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:21
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/14; H02K7/145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB337834A
Cited
US1922258A
Cited
GB404477A
Cited
US2028176A
Cited
US1990017A
Cited
US2170036A
Cited
US2234926A
Cited
US2452268A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |