US2542601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair curler
Assignee: Johns Manville Corp
•
Filing: 1946-05-24
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Granted: 1951-02-20
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Expires: 1966-05-24
Abstract
No abstract record available.
Inventors
- 👤 Paul Van Cleef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:45
CPC Classifications
A; A45; A45D; A45D2/00; A45D2/12; A45D2/14; A45D2/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |