US2649280A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain hoist mechanism
Assignee: STEEL PRODUCTS ENG CO
•
Filing: 1950-05-31
•
Granted: 1953-08-18
•
Expires: 1970-05-31
Abstract
No abstract record available.
Inventors
- 👤 Larence E Rausenberger
- 👤 Delmond L Getz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:15
CPC Classifications
B; B66; B66D; B66D3/00; B66D3/18; B66D3/20; B66D3/22; B66D2700/00; B66D2700/02; B66D2700/026
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US234728A
Cited
GB159814A
Cited
US1755798A
Cited
US2207166A
Cited
US2529084A
Cited
US2342091A
Cited
US2492339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |