US2920504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-speed transmission system
Assignee: Schlepperwerk Nordhausen VEB
•
Filing: 1958-04-11
•
Granted: 1960-01-12
•
Expires: 1978-04-11
Abstract
No abstract record available.
Inventors
- 👤 Sommer Reinhold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:55
CPC Classifications
F; F16; F16H; F16H59/00; F16H59/02; F16H63/00; F16H63/40; F16H63/44; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19167; Y10T74/19219; Y10T74/19372; Y10T74/19377; Y10T74/19386; Y10T74/19405; Y10T74/20; Y10T74/20012; Y10T74/20018; Y10T74/20085
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |