US2461883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the permanent waving of hair
Assignee: Individual
•
Filing: 1946-11-25
•
Granted: 1949-02-15
•
Expires: 1966-11-25
Abstract
No abstract record available.
Inventors
- 👤 Elsasser Otto
- 👤 Ronzi Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:29
CPC Classifications
A; A45; A45D; A45D2/00; A45D2/12; A45D2/14; A45D2/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB453559A
Cited
US2266111A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-15 | 1952-08-16 | 1953-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-15 | 1956-08-16 | 1957-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-15 | 1960-08-16 | 1961-02-15 | $7700.00 | Window Closed / Lapsed |