Patent US3561115A successfully refreshed from Google Patents.
US3561115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric hair clipper
Assignee: John Oster Manufacturing Co
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Filing: 1968-03-29
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Granted: 1971-02-09
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Expires: 1988-03-29
Abstract
Abstract HAIR CUTTING DEVICE HAVING THE CUTTER ASSEMBLY EXTENDING FORWARDLY FROM THE HOUSING AND THE CUTTER ASSEMBLY INCLUDING TWO SPACED ROWS OF CUTTING TEETH PARALLEL TO THE HOUSING. A LINKAGE ARRANGEMENT TRANSMITS THE ROTARY POWER FROM A PERMANENT MAGNET MOTOR TO RECIPROCATE THE CUTTER ASSEMBLY COMPRISING A RECIPROCAL CUTTER AND A STATIONARY COMB. THE CUTTER IS BIASED AGAINST THE STATIONARY COMB BY MEANS OF A LEAF SPRING WHICH IS CLAMPED IN A MANNER TO MAINTAIN A UNIFORM TENSION THEREBETWEEN.
Inventors
- 👤 Bernhard Palm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:36
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |