Patent US3356041A successfully refreshed from Google Patents.
US3356041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traction systems
Assignee: Hovercraft Development Ltd
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Filing: 1966-09-26
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Granted: 1967-12-05
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Expires: 1986-09-26
Abstract
No abstract record available.
Inventors
- 👤 Bliss Denys Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:33
CPC Classifications
B; B60; B60L; B60L13/00; B60L13/03; B60L15/00; B60L15/002; B60L15/005; B60V; B60V3/00; B60V3/02; B60V3/04; B61; B61B; B61B13/00; B61B13/08; B60L2200/00; B60L2200/26; B60L2220/00; B60L2220/10; B60L2220/14; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/64; Y02T30/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A TRACTION SYSTEM COMPRISING A TRACK, A VEHICLE ON SAID TRACK, LINEAR MOTOR DRIVING MEANS ON SAID VEHICLE CONDUCTOR MEANS RIGID WITH SAID TRACK, SAID LINEAR MOTOR DRIVING MEANS ADAPTED TO REACT WITH SAID TRACK CONDUCTOR MEANS TO DRIVE THE VEHICLE ALONG THE TRACK, MEANS FOR ENABLING SAID DRIVING MOTOR MEANS TO FUNCTION REGENERATIVELY FOR BRAKING OF THE VEHICLE, ADDITIONAL LINEAR MOTOR MEANS ADAPTED TO CO-OPERATE WITH SAID TRACK CONDUCTOR MEANS FOR BRAKING THE VEHICLE, AND SWITCHING MEANS FOR APPLYING OUTPUT FROM SAID DRIVING MOTOR MEANS TO ENERGISE THE ADDITIONAL MOTOR MEANS WHEN THE DRIVING MOTOR MEANS IS REGENERATING.
Claim 2
Dependent Claim
99 words
A TRACTION SYSTEM COMPRISING A TRACK, A VEHICLE ON SAID TRACK, LINEAR MOTOR DRIVING MEANS ON SAID VEHICLE CONDUCTOR MEANS RIGID WITH SAID TRACK, SAID LINEAR MOTOR DRIVING MEANS ADAPTED TO REACT WITH SAID TRACK CONDUCTOR MEANS TO DRIVE THE VEHICLE ALONG THE TRACK, MEANS FOR ENABLING SAID DRIVING MOTOR MEANS TO FUNCTION REGENERATIVELY FOR BRAKING OF THE VEHICLE, ADDITIONAL LINEAR MOTOR MEANS ADAPTED TO CO-OPERATE WITH SAID TRACK CONDUCTOR MEANS FOR BRAKING THE VEHICLE, AND SWITCHING MEANS FOR APPLYING OUTPUT FROM SAID DRIVING MOTOR MEANS TO ENERGISE THE ADDITIONAL MOTOR MEANS WHEN THE DRIVING MOTOR MEANS IS REGENERATING.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |