US3473004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair curling apparatus
Assignee: Individual
•
Filing: 1966-02-07
•
Granted: 1969-10-14
•
Expires: 1986-02-07
Abstract
No abstract record available.
Inventors
- 👤 Charles Block
- 👤 Jerome Bauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:23
CPC Classifications
A; A45; A45D; A45D4/00; A45D4/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1560673A
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FR652732A
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US1861809A
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US1927001A
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US1924040A
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US2084951A
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US2277605A
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US2432400A
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US3196883A
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US3283122A
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US3281579A
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US3250895A
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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) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |