Patent US2803031A successfully refreshed from Google Patents.
US2803031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Applicator for hair-treating solutions
Assignee: Individual
•
Filing: 1955-07-11
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Granted: 1957-08-20
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Expires: 1975-07-11
Abstract
No abstract record available.
Inventors
- 👤 Cervelli Blanche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:00
CPC Classifications
A; A45; A45D; A45D19/00; A45D19/02; A45D19/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US249589A
Cited
US258926A
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US2732824A
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US656301A
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US779503A
Cited
US1358733A
Cited
US1534827A
Cited
GB444265A
Cited
US2239054A
Cited
AT172503B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |