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US2561609A
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US
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High-frequency hair waver
Assignee: Individual
•
Filing: 1946-03-05
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Granted: 1951-07-24
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Expires: 1966-03-05
Abstract
No abstract record available.
Inventors
- 👤 Briggs George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:05
CPC Classifications
A; A45; A45D; A45D4/00; A45D4/08; A45D4/12; H; H05; H05B; H05B6/00; H05B6/46; H05B6/48; H05B6/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1892106A
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US1697148A
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US1734536A
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US2009973A
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US1993876A
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US2118594A
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US2184534A
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US2137189A
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US2284863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |