Patent US3108310A successfully refreshed from Google Patents.
US3108310A
Expired / Lapsed
US
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Vacuum cleaner nozzles
Assignee: Electrolux Corp
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Filing: 1961-04-21
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Granted: 1963-10-29
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Expires: 1981-04-21
Abstract
No abstract record available.
Inventors
- 👤 Oliver L Allen
- 👤 John T Ferraris
- 👤 William P Ritzau
- 👤 William P Vermaulen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:32
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02; A47L9/04; A47L9/06; A47L9/0633; A47L9/064; A47L9/0653
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN A VACUUM CLEANER NOZZLE, A BASE MEMBER, ROLLER MEANS ADJACENT TO THE FRONT AND REAR EDGES, RESPECTIVELY, OF SAID MEMBER, SPACED WALLS CARRIED BY SAID BASE MEMBER IN FIXED POSITION WITH RESPECT THERETO AND BETWEEN AND PARALLEL TO SAID ROLLER MEANS AND FORMING AN ELONGATED SUCTION OPENING, THE RESPECTIVE WALLS BEING SPACED INWARDLY FROM SAID ROLLER MEANS, THE FORWARD WALL BEING CLOSELY ADJACENT TO THE FRONT ROLLER, THE LOWER EDGES OF SAID WALLS BEING THIN TO FORM NARROW LIPS BOUNDING SAID SUCTION OPENING, SAID LIPS TERMINATING SUBSTANTIALLY IN A PLANE TANGENT TO THE LOWER SURFACES OF SAID ROLLER MEANS, AND A GLIDING SURFACE EXTENDING A MAJOR PORTION OF THE LENGTH OF AND CARRIED BY SAID BASE MEMBER SUBSTANTIALLY IN SAID PLANE IN SPACED RELATION TO THE ADJACENT LIP AND BETWEEN SAID LIP AND ONE OF SAID ROLLER MEANS.
Claim 2
Dependent Claim
139 words
IN A VACUUM CLEANER NOZZLE, A BASE MEMBER, ROLLER MEANS ADJACENT TO THE FRONT AND REAR EDGES, RESPECTIVELY, OF SAID MEMBER, SPACED WALLS CARRIED BY SAID BASE MEMBER IN FIXED POSITION WITH RESPECT THERETO AND BETWEEN AND PARALLEL TO SAID ROLLER MEANS AND FORMING AN ELONGATED SUCTION OPENING, THE RESPECTIVE WALLS BEING SPACED INWARDLY FROM SAID ROLLER MEANS, THE FORWARD WALL BEING CLOSELY ADJACENT TO THE FRONT ROLLER, THE LOWER EDGES OF SAID WALLS BEING THIN TO FORM NARROW LIPS BOUNDING SAID SUCTION OPENING, SAID LIPS TERMINATING SUBSTANTIALLY IN A PLANE TANGENT TO THE LOWER SURFACES OF SAID ROLLER MEANS, AND A GLIDING SURFACE EXTENDING A MAJOR PORTION OF THE LENGTH OF AND CARRIED BY SAID BASE MEMBER SUBSTANTIALLY IN SAID PLANE IN SPACED RELATION TO THE ADJACENT LIP AND BETWEEN SAID LIP AND ONE OF SAID ROLLER MEANS.
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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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |