Patent US2218264A successfully refreshed from Google Patents.
Patent US2997374A successfully refreshed from Google Patents.
Patent US3144690A successfully refreshed from Google Patents.
US3047331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frame construction for vehicles
Assignee: Dr Ing HCF Porsche AG
•
Filing: 1959-02-12
•
Granted: 1962-07-31
•
Expires: 1979-02-12
Abstract
No abstract record available.
Inventors
- 👤 Porsche Ferdinand
- 👤 Blaschka Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:44
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/24; B60N2/30; B60N2/3002; B60N2/3004; B60N2/3009; B60N2/3011; B62; B62D; B62D21/00; B62D21/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2216120A
Cited
US2240022A
Cited
FR872978A
Cited
US2660348A
Cited
US2645519A
Cited
US2637592A
Cited
US2710769A
Cited
US2841439A
Cited
GB766217A
Cited
US2812030A
Cited
US2875841A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |