Patent US3056555A successfully refreshed from Google Patents.
US3056555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grade crossing
Assignee: Individual
•
Filing: 1960-08-23
•
Granted: 1962-10-02
•
Expires: 1980-08-23
Abstract
No abstract record available.
Inventors
- 👤 Jacob A Eisses
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:40
CPC Classifications
E; E01; E01C; E01C9/00; E01C9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US590792A
Cited
US690603A
Cited
US779795A
Cited
US1191561A
Cited
US1279062A
Cited
US1234138A
Cited
GB237169A
Cited
US1598584A
Cited
US1707245A
Cited
US1863145A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |