Patent US3762677A successfully refreshed from Google Patents.
US3097017A
Expired / Lapsed
US
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Extraction method and apparatus
Assignee: Individual
•
Filing: 1959-10-02
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Granted: 1963-07-09
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Expires: 1979-10-02
Abstract
No abstract record available.
Inventors
- 👤 Roscoe E Turner
- 👤 Harold J Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:58
CPC Classifications
B; B60; B60C; B60C29/00; B60C29/06; B60C29/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
APPARATUS FOR REMOVING BALLAST FROM AN INNER TUBE OF A CASING MOUNTED ON A WHEEL, COMPRISING: A TOOL FOR INSERTION THROUGH AN OPENING IN SAID CASING AND AN OPENING IN SAID INNER TUBE HAVING TWO SEPARATE CONCENTRIC CHANNELS FOR SIMULTANEOUSLY APPLICATION OF PRESSURE THROUGH ONE CHANNEL AND REDUCED PRESSURE THROUGH THE OTHER CHANNEL TO THE INTERIOR OF SAID INNER TUBE; A SOURCE OF PRESSURE CONNECTED TO ONE OF SAID CHANNELS; A SOURCE OF REDUCED PRESSURE CONNECTED TO THE OTHER OF SAID CHANNEL; A HOLLOW CONNECTOR INTO WHICH SAID TOOL IS FITTED AND ADAPTED TO CONNECT SAID TOOL WITH THE INTERIOR OF THE INNER TUBE OF SAID CASING, COMPRISING A HOLLOW STEM MEMBER FOR INSERTION THROUGH THE OPENING IN SAID CASING HAVING A BASE MEMBER AT ONE END FOR ATTACHMENT TO THE EXTERIOR SURFACE
Claim 2
Dependent Claim
133 words
APPARATUS FOR REMOVING BALLAST FROM AN INNER TUBE OF A CASING MOUNTED ON A WHEEL, COMPRISING: A TOOL FOR INSERTION THROUGH AN OPENING IN SAID CASING AND AN OPENING IN SAID INNER TUBE HAVING TWO SEPARATE CONCENTRIC CHANNELS FOR SIMULTANEOUSLY APPLICATION OF PRESSURE THROUGH ONE CHANNEL AND REDUCED PRESSURE THROUGH THE OTHER CHANNEL TO THE INTERIOR OF SAID INNER TUBE; A SOURCE OF PRESSURE CONNECTED TO ONE OF SAID CHANNELS; A SOURCE OF REDUCED PRESSURE CONNECTED TO THE OTHER OF SAID CHANNEL; A HOLLOW CONNECTOR INTO WHICH SAID TOOL IS FITTED AND ADAPTED TO CONNECT SAID TOOL WITH THE INTERIOR OF THE INNER TUBE OF SAID CASING, COMPRISING A HOLLOW STEM MEMBER FOR INSERTION THROUGH THE OPENING IN SAID CASING HAVING A BASE MEMBER AT ONE END FOR ATTACHMENT TO THE EXTERIOR SURFACE
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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) | 1966-07-08 | 1967-01-07 | 1967-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-08 | 1971-01-07 | 1971-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-08 | 1975-01-07 | 1975-07-09 | $7700.00 | Window Closed / Lapsed |