US3178754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric toothbrush
Assignee: Individual
•
Filing: 1963-05-15
•
Granted: 1965-04-20
•
Expires: 1983-05-15
Abstract
No abstract record available.
Inventors
- 👤 Alton A Cleverdon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:00
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/16; A61C17/22; A61C17/32; A61C17/34; A61C17/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A TOOTBRUSH COMPRISING A HANDLE HOLLOW IN PART AND DEFINING A CYLINDER, A PISTON MOVABLE IN SAID CYLINDER AND DEFINING THEREWITH A PUMP CHAMBER OF VARIABLE SIZE, FLUID PASSAGE MEANS CONNECTING WITH SAID CHAMBER AND EFFECTIVE TO SUPPLY FLUID TO SAID CHAMBER AS THE SIZE OF SAID CHAMBER INCREASES AND TO INHIBIT THE FLOW OF FLUID THROUGH SAID PASSAGE AS THE SIZE OF SAID CHAMBER DECREASES, A ROD ATTACHED TO SAID PISTON AND EXTENDING OUT FROM SAID HANDLE, A BRUSH ELEMENT CARRIED BY SAID ROD EXTERNALLY OF SAID HANDLE, SAID BRUSH ELEMENT HAVING A FLUID PASSAGE THERETHROUGH OPENING TO THE EXTERIOR THEREOF, SAID ROD HAVING A FLUID PASSAGE COMMUNICATING BETWEEN SAID PUMP CHAMBER AND SAID BRUSH PASSAGE, SAID POWER MEANS OPERATIVELY CONNECTED TO SAID PISTON FOR RECIPROCATING SAID PISTON WITHIN SAID CYLINDER, THEREBY MOVING SAID BRUSH ELEMENT RELATIVE TO SAID HANDLE AND PUMPING FLUID TO AND THROUGH SAID BRUSH ELEMENT.
Claim 2
Dependent Claim
150 words
A TOOTBRUSH COMPRISING A HANDLE HOLLOW IN PART AND DEFINING A CYLINDER, A PISTON MOVABLE IN SAID CYLINDER AND DEFINING THEREWITH A PUMP CHAMBER OF VARIABLE SIZE, FLUID PASSAGE MEANS CONNECTING WITH SAID CHAMBER AND EFFECTIVE TO SUPPLY FLUID TO SAID CHAMBER AS THE SIZE OF SAID CHAMBER INCREASES AND TO INHIBIT THE FLOW OF FLUID THROUGH SAID PASSAGE AS THE SIZE OF SAID CHAMBER DECREASES, A ROD ATTACHED TO SAID PISTON AND EXTENDING OUT FROM SAID HANDLE, A BRUSH ELEMENT CARRIED BY SAID ROD EXTERNALLY OF SAID HANDLE, SAID BRUSH ELEMENT HAVING A FLUID PASSAGE THERETHROUGH OPENING TO THE EXTERIOR THEREOF, SAID ROD HAVING A FLUID PASSAGE COMMUNICATING BETWEEN SAID PUMP CHAMBER AND SAID BRUSH PASSAGE, SAID POWER MEANS OPERATIVELY CONNECTED TO SAID PISTON FOR RECIPROCATING SAID PISTON WITHIN SAID CYLINDER, THEREBY MOVING SAID BRUSH ELEMENT RELATIVE TO SAID HANDLE AND PUMPING FLUID TO AND THROUGH SAID BRUSH ELEMENT.
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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) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |