Patent US3392443A successfully refreshed from Google Patents.
US3392443A
Expired / Lapsed
US
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Battery powered dry shaver having rotary shaving head and retractible trimmer
Assignee: Panasonic Electric Works Co Ltd
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Filing: 1966-07-05
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Granted: 1968-07-16
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Expires: 1986-07-05
Abstract
No abstract record available.
Inventors
- 👤 Kawano Yoshiro
- 👤 Tanaka Yoshimasa
- 👤 Yamada Norio
- 👤 Ono Taisuke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:47
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/26; B26B19/265; H; H01; H01M; H01M50/00; H01M50/20; H01M50/204; H01M50/207; H01M50/213; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10S; Y10S30/00; Y10S30/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |