US1473815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Box-car unloader
Assignee: Individual
•
Filing: 1920-12-16
•
Granted: 1923-11-13
•
Expires: 1940-12-16
Abstract
No abstract record available.
Inventors
- 👤 Rudolph C Francke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:19
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/34; E02F3/348; E02F3/3486
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1926-11-12 | 1927-05-14 | 1927-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-11-12 | 1931-05-14 | 1931-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-11-12 | 1935-05-14 | 1935-11-13 | $7700.00 | Window Closed / Lapsed |