US3215218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traction increasing means for vehicles
Assignee: Individual
•
Filing: 1960-11-01
•
Granted: 1965-11-02
•
Expires: 1980-11-01
Abstract
No abstract record available.
Inventors
- 👤 Hurst Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:20
CPC Classifications
B; B60; B60V; B60V1/00; B60V1/02; B62; B62D; B62D37/00; B62D37/02; B62D57/00; B62D57/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A LAND VEHICLE COMPRISING A BODY, MEANS LOCATED ON SAID BODY SO AS TO SUPPORT THE LOWER SURFACE OF SAID BODY CLEAR OF THE SURFACE ON WHICH SAID VEHICLE IS LOCATED, AIRWITHDRAWAL MEANS CARRIED BY SAID BODY, AN INLET TO AND AN OUTLET FROM SAID AIR-WITHDRAWAL MEANS, SAID INLET BEING CONNECTED BY A PASSAGE TO THE SPACE BENEATH SAID LOWER SURFACE OF BODY, SAID AIR-WITHDRAWAL MEANS BEING OF A CAPACITY TO EXHAUST AT LEAST PART OF THE AIR IN THE SPACE BETWEEN SAID LOWER SURFACE OF SAID BODY AND SAID SURFACE ON WHICH SAID VEHICLE IS LOCATED WHEREBY SAID VEHICLE IS FORCED TOWARDS SAID LAST-MENTIOONED SUPPORTING SURFACE BY
Claim 2
Dependent Claim
108 words
A LAND VEHICLE COMPRISING A BODY, MEANS LOCATED ON SAID BODY SO AS TO SUPPORT THE LOWER SURFACE OF SAID BODY CLEAR OF THE SURFACE ON WHICH SAID VEHICLE IS LOCATED, AIRWITHDRAWAL MEANS CARRIED BY SAID BODY, AN INLET TO AND AN OUTLET FROM SAID AIR-WITHDRAWAL MEANS, SAID INLET BEING CONNECTED BY A PASSAGE TO THE SPACE BENEATH SAID LOWER SURFACE OF BODY, SAID AIR-WITHDRAWAL MEANS BEING OF A CAPACITY TO EXHAUST AT LEAST PART OF THE AIR IN THE SPACE BETWEEN SAID LOWER SURFACE OF SAID BODY AND SAID SURFACE ON WHICH SAID VEHICLE IS LOCATED WHEREBY SAID VEHICLE IS FORCED TOWARDS SAID LAST-MENTIOONED SUPPORTING SURFACE BY
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |