Patent US3019795A successfully refreshed from Google Patents.
US3019795A
Expired / Lapsed
US
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Method and apparatus for treating hair
Assignee: Individual
•
Filing: 1958-01-03
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Granted: 1962-02-06
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Expires: 1978-01-03
Abstract
No abstract record available.
Inventors
- 👤 Dallas D Weatherholt
- 👤 James H Fulford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:06
CPC Classifications
A; A45; A45D; A45D20/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB617274A
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US1892106A
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US1751573A
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US2118594A
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US2191080A
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US2212522A
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US2137189A
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US2235895A
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US2265920A
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US2286110A
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US2526283A
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US2560808A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |