US3337898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibrating vacuum head
Assignee: TDK Micronas GmbH
•
Filing: 1964-09-28
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Granted: 1967-08-29
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Expires: 1984-09-28
Abstract
No abstract record available.
Inventors
- 👤 William P Schmid
- 👤 William F Zador
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:10
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/28; B; B01; B01D; B01D46/00; B01D46/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A HEAD FOR USE IN THE CLEANING OF MATERIALS, SAID HEAD COMPRISING A HOLLOW, SUBSTANTIALLY POLYHEDRONSHAPED BODY, SAID BODY HAVING A NARROW OPENING BETWEEN ADJACENT EDGES OF TWO OF THE FACE WALLS OF SAID BODY, THE EDGE OF ONE OF SAID FACE WALLS HAVING ATTACHED THERETO A FLEXIBLE MATERIAL EXTENDING FROM SAID OPENING AN APPRECIABLE DISTANCE INTO THE INTERIOR OF SAID BODY, ONE OF THE FACE WALLS OF SAID BODY HAVING MEANS FOR ATTACHMENT OF A CONDUIT WITHIN WHICH THE FLUID PRESSURE MAY DIFFER FROM THE
Claim 2
Dependent Claim
86 words
A HEAD FOR USE IN THE CLEANING OF MATERIALS, SAID HEAD COMPRISING A HOLLOW, SUBSTANTIALLY POLYHEDRONSHAPED BODY, SAID BODY HAVING A NARROW OPENING BETWEEN ADJACENT EDGES OF TWO OF THE FACE WALLS OF SAID BODY, THE EDGE OF ONE OF SAID FACE WALLS HAVING ATTACHED THERETO A FLEXIBLE MATERIAL EXTENDING FROM SAID OPENING AN APPRECIABLE DISTANCE INTO THE INTERIOR OF SAID BODY, ONE OF THE FACE WALLS OF SAID BODY HAVING MEANS FOR ATTACHMENT OF A CONDUIT WITHIN WHICH THE FLUID PRESSURE MAY DIFFER FROM THE
References Cited (Backward Citations)
DE667452C
Cited
US2364877A
Cited
US2458258A
Cited
US2931061A
Cited
US3173776A
Cited
US3138818A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |