US2564722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating hair to impart a permanent set thereto
Assignee: RAYMOND LAB Inc
•
Filing: 1945-06-04
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Granted: 1951-08-21
•
Expires: 1965-06-04
Abstract
No abstract record available.
Inventors
- 👤 Raymond E Reed
- 👤 Beste Marion Den
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:51
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/04; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/20; A61K8/30; A61K8/46
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
48 words
THE METHOD OF NEUTRALIZING A REDUCING SOLUTION WHICH HAS BEEN APPLIED TO HUMAN HAIR IN THE PERMANENT WAVING THEREOF, COMPRISING APPLYING TO HAIR WET WITH SAID REDUCING SOLUTION, A SOLUTION OF A SALT SELECTED FROM THE GROUP CONSISTING OF AMMONIUM, ALKALI AND ALKALI EARTH METAL BROMATES AND IODATES.
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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) | 1954-08-20 | 1955-02-19 | 1955-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-20 | 1959-02-19 | 1959-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-20 | 1963-02-19 | 1963-08-21 | $7700.00 | Window Closed / Lapsed |