US3205528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner nozzle
Assignee: Westinghouse Electric Corp
•
Filing: 1963-11-29
•
Granted: 1965-09-14
•
Expires: 1983-11-29
Abstract
No abstract record available.
Inventors
- 👤 Charles T Fromknecht
- 👤 George H Frost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:31
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
IN A NOZZLE FOR A VACUUM CLEANER HAVING A SUCTION DEVICE, IN COMBINATION, A BODY HAVING A GENERALLY RECTANGULAR FACE, A RELATIVELY LARGE GENERALLY RECTANGULAR OPENING IN THE FACE FOR NORMAL SUCTION, A RELATIVELY SMALL OPENING AT EACH FORWARD CORNER OF THE FACE FOR CONCENTRATED SUCTION, SEPARATE AIR PASSAGE MEANS IN SAID BODY FROM SAID OPENINGS, A CONNECTOR TUBE FOR CONNECTING THE NOZZLE TO THE SUCTION DEVICE, SAID TUBE HAVING AN OPENING IN ONE END FOR COMMUNICATING WITH THE NORMAL SUCTION OPENING THROUGH A FIRST SELECTED AIR PASSAGE MEANS, AN OPENING IN THE SIDE OF THE TUBE FOR COMMUNICATING WITH THE CONCENTRATED SUCTION OPENINGS THROUGH ANOTHER SELECTED AIR PASSAGE MEANS, SAID TUBE BEING ROTATABLE AND MOVABLE LONGITUDINALLY IN SAID BODY, SAID NOZZLE INCLUDING MEANS RESPONSIVE TO SUCH MOVEMENT TO ESTABLISH COMMUNICATION SELECTIVELY BETWEEN THE INTERIOR OF SAID TUBE AND SAID FIRST OR SAID ANOTHER AIR PASSAGE MEANS.
Claim 2
Dependent Claim
147 words
IN A NOZZLE FOR A VACUUM CLEANER HAVING A SUCTION DEVICE, IN COMBINATION, A BODY HAVING A GENERALLY RECTANGULAR FACE, A RELATIVELY LARGE GENERALLY RECTANGULAR OPENING IN THE FACE FOR NORMAL SUCTION, A RELATIVELY SMALL OPENING AT EACH FORWARD CORNER OF THE FACE FOR CONCENTRATED SUCTION, SEPARATE AIR PASSAGE MEANS IN SAID BODY FROM SAID OPENINGS, A CONNECTOR TUBE FOR CONNECTING THE NOZZLE TO THE SUCTION DEVICE, SAID TUBE HAVING AN OPENING IN ONE END FOR COMMUNICATING WITH THE NORMAL SUCTION OPENING THROUGH A FIRST SELECTED AIR PASSAGE MEANS, AN OPENING IN THE SIDE OF THE TUBE FOR COMMUNICATING WITH THE CONCENTRATED SUCTION OPENINGS THROUGH ANOTHER SELECTED AIR PASSAGE MEANS, SAID TUBE BEING ROTATABLE AND MOVABLE LONGITUDINALLY IN SAID BODY, SAID NOZZLE INCLUDING MEANS RESPONSIVE TO SUCH MOVEMENT TO ESTABLISH COMMUNICATION SELECTIVELY BETWEEN THE INTERIOR OF SAID TUBE AND SAID FIRST OR SAID ANOTHER AIR PASSAGE 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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |