Patent US3170469A successfully refreshed from Google Patents.
US3170469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible hair curling device
Assignee: Individual
•
Filing: 1961-05-31
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Granted: 1965-02-23
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Expires: 1981-05-31
Abstract
No abstract record available.
Inventors
- 👤 Nathan L Solomon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:42
CPC Classifications
A; A45; A45D; A45D2/00; A45D2/12; A45D2/14; A45D2/18
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
57 words
A ONE PIECE HAIR CURLER COMPRISING A CONTINUOUS HELICAL COIL FORMING A GERERALLY TUBULAR BODY AND A SERIES OF CIRCUMFERENTIALLY SPACED APART LONGITUDINALLY EXTENDING FLEXIBLE STRIPS INTEGRALLY INTERCONNECTING CONSECUTIVE HELICES OF SAID COIL, SAID STRIPS HAVING A LENGTH BETWEEN CONSECUTIVE HELICES GREATER THAN THE DISTANCE BETWEEN CONNECTIONS TO SAID CONSECUTIVE HELICES FOR FORMING A FLEXIBLE YIELDABLE WALL.
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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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |