US2429266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway wheel checking device
Assignee: Individual
•
Filing: 1945-06-29
•
Granted: 1947-10-21
•
Expires: 1965-06-29
Abstract
No abstract record available.
Inventors
- 👤 Marion W Gieskieng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:18
CPC Classifications
B; B61; B61K; B61K9/00; B61K9/12; B61L; B61L1/00; B61L1/02; B61L1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1638174A
Cited
US1640567A
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US1702997A
Cited
CH155301A
Cited
US2010189A
Cited
GB390436A
Cited
US2110591A
Cited
US2231105A
Cited
US2277099A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-20 | 1951-04-21 | 1951-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-20 | 1955-04-21 | 1955-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-20 | 1959-04-21 | 1959-10-21 | $7700.00 | Window Closed / Lapsed |