Patent US2975516A successfully refreshed from Google Patents.
US2975516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry shaver head construction for cutting long and short hair
Assignee: Individual
•
Filing: 1958-07-07
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Granted: 1961-03-21
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Expires: 1978-07-07
Abstract
No abstract record available.
Inventors
- 👤 Heyek Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:44
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/02; B26B19/04; B26B19/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US2234929A
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US2234894A
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US2317177A
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US2339677A
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GB669172A
Cited
US2661531A
Cited
AT171778B
Cited
CH304814A
Cited
GB783834A
Cited
US2828836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |