Patent US2747585A successfully refreshed from Google Patents.
US2747585A
Expired / Lapsed
US
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Curling rod for use in the cold permanent waving of hair
Assignee: Foster D Snell Inc
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Filing: 1950-10-06
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Granted: 1956-05-29
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Expires: 1970-10-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Lyman H Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:59
CPC Classifications
A; A45; A45D; A45D2/00; A45D2/12; A45D2/14; A45D2/22; Y; Y10; Y10S; Y10S132/00; Y10S132/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1622526A
Cited
US2331065A
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US2255833A
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US2397051A
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US2371667A
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US2404517A
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US2400102A
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US2546848A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |