US2947263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railroad car spotter
Assignee: MA Hanna Co
•
Filing: 1957-08-16
•
Granted: 1960-08-02
•
Expires: 1977-08-16
Abstract
No abstract record available.
Inventors
- 👤 John P Vidmar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:12
CPC Classifications
B; B61; B61B; B61B13/00; B61B13/12; B61B13/127; B65; B65G; B65G67/00; B65G2814/00; B65G2814/03; B65G2814/0347; B65G2814/0356; B65G2814/0359; B65G2814/0361; B65G2814/0364
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1321463A
Cited
US1396627A
Cited
US2038732A
Cited
US2575914A
Cited
US2642280A
Cited
US2715369A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |