Patent US2415892A successfully refreshed from Google Patents.
US2415892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material-handling machine
Assignee: Individual
•
Filing: 1945-02-17
•
Granted: 1947-02-18
•
Expires: 1965-02-17
Abstract
No abstract record available.
Inventors
- 👤 Charles R Koehl
- 👤 Messner Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:51
CPC Classifications
A; A01; A01D; A01D87/00; A01D87/0053; A01D87/0069
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2371273A
Cited
US1477136A
Cited
US2242511A
Cited
US2301102A
Cited
US2305119A
Cited
US2286947A
Cited
US2311671A
Cited
US2363986A
Cited
US2393299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-17 | 1950-08-19 | 1951-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-17 | 1954-08-19 | 1955-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-17 | 1958-08-19 | 1959-02-18 | $7700.00 | Window Closed / Lapsed |