Patent US2901219A successfully refreshed from Google Patents.
US2901219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load balancer for hoists
Assignee: Gardner Denver Inc
•
Filing: 1957-04-04
•
Granted: 1959-08-25
•
Expires: 1977-04-04
Abstract
No abstract record available.
Inventors
- 👤 John D Bottje
- 👤 Robert B Shulters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:02
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/28; B; B66; B66D; B66D3/00; B66D3/18; 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)
US1892829A
Cited
US2384774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |