Patent US3146483A successfully refreshed from Google Patents.
US3146483A
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US
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Tool actuated quick acting slide valve
Assignee: Individual
•
Filing: 1962-09-05
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Granted: 1964-09-01
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Expires: 1982-09-05
Abstract
No abstract record available.
Inventors
- 👤 Harold P Bishop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:47
CPC Classifications
A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/38; Y; Y10; Y10S; Y10S55/00; Y10S55/08; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6918; Y10T137/6925
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
130 words
A QUICK ACTING SLIDE VALVE COMPRISING A CASING HAVING AN OPENING THERETHROUGH, A VALVE PLATE SLIDABLY LOCATED WITHIN SAID CASING FOR NORMALLY CLOSING SAID OPENING AND HAVING AN APERTURE THEREIN ARRANGED TO REGISTER WITH SAID OPENING WHEN THE VALVE PLATE IS MOVED TO OPEN POSITION, A VACUUM LINE CONNECTED TO ONE END OF SAID OPENING, A FLEXIBLE HOSE CONNECTED TO THE OTHER END OF SAID OPENING AND HAVING A VACUUM CLEANING TOOL UPON ITS END, MEANS UPON THE VALVE CASING FOR SUPPORTING THE VACUUM CLEANING TOOL, AND MEANS UPON THE VALVE PLATE FOR ENGAGEMENT BY SAID TOOL FOR MOVING THE VALVE PLATE TO CLOSED POSITION WHEN THE TOOL IS PLACED UPON THE CASING AND FOR MOVING THE VALVE PLATE TO OPEN POSITION WHEN THE TOOL IS REMOVED FROM THE CASING.
References Cited (Backward Citations)
US841932A
Cited
US1063019A
Cited
US1618667A
Cited
US1892260A
Cited
US3036170A
Cited
US3027587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |