Patent US3517442A successfully refreshed from Google Patents.
US3517442A
Expired / Lapsed
US
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Attachment for increasing the effectiveness of an electric shaver
Assignee: Individual
•
Filing: 1968-04-08
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Granted: 1970-06-30
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Expires: 1988-04-08
Abstract
No abstract record available.
Inventors
- 👤 Malachy J Regan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:25
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/38; B26B19/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1741891A
Cited
GB427645A
Cited
US2164820A
Cited
GB523492A
Cited
FR66602E
Cited
US2677883A
Cited
US2711015A
Cited
US2600880A
Cited
US2814104A
Cited
US3109192A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-29 | 1973-12-29 | 1974-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-29 | 1977-12-29 | 1978-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-29 | 1981-12-29 | 1982-06-30 | $7700.00 | Window Closed / Lapsed |