Patent US1759558A successfully refreshed from Google Patents.
US1759558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable-speed gear
Assignee: Krupp Stahl AG
•
Filing: 1929-03-26
•
Granted: 1930-05-20
•
Expires: 1949-03-26
Abstract
No abstract record available.
Inventors
- 👤 Jacobs Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:29
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/02; F16H3/08; F16H3/10; F16H3/006; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19228; Y10T74/19377; Y10T74/19386; Y10T74/19391; Y10T74/194
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1933-05-19 | 1933-11-18 | 1934-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-05-19 | 1937-11-18 | 1938-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-05-19 | 1941-11-18 | 1942-05-20 | $7700.00 | Window Closed / Lapsed |