Patent US1453971A successfully refreshed from Google Patents.
US1453971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair curler
Assignee: Individual
•
Filing: 1922-07-25
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Granted: 1923-05-01
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Expires: 1942-07-25
Abstract
No abstract record available.
Inventors
- 👤 Calkins Elizabeth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:10
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)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1926-04-30 | 1926-10-30 | 1927-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-04-30 | 1930-10-30 | 1931-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-04-30 | 1934-10-30 | 1935-05-01 | $7700.00 | Window Closed / Lapsed |