Patent US2739590A successfully refreshed from Google Patents.
US2241827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle spring suspension
Assignee: Dr Ing HCF Porsche AG
•
Filing: 1938-07-27
•
Granted: 1941-05-13
•
Expires: 1958-07-27
Abstract
No abstract record available.
Inventors
- 👤 Rabe Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:14
CPC Classifications
B; B60; B60G; B60G11/00; B60G11/32; B60G11/34; B60G11/38; B60G21/00; B60G21/02; B60G21/04; B60G21/05; B60G21/055
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) | 1944-05-12 | 1944-11-11 | 1945-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-05-12 | 1948-11-11 | 1949-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-05-12 | 1952-11-11 | 1953-05-13 | $7700.00 | Window Closed / Lapsed |