US3489874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control switch for an electric dry razor
Assignee: Robert Krups GmbH and Co KG
•
Filing: 1967-08-15
•
Granted: 1970-01-13
•
Expires: 1987-08-15
Abstract
No abstract record available.
Inventors
- 👤 Kurt Baumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:06
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/38; B26B19/3853; B26B19/3873; B26B19/3886; H; H01; H01H; H01H1/00; H01H1/12; H01H1/36; H01H1/40; H01H1/403; H01H15/00; H01H15/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3200112A
Cited
US3009999A
Cited
US3372247A
Cited
US3156804A
Cited
US3204053A
Cited
US3243528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |