US3058233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Active-oxygen treatment for human head hair
Assignee: Individual
•
Filing: 1958-09-04
•
Granted: 1962-10-16
•
Expires: 1978-09-04
Abstract
No abstract record available.
Inventors
- 👤 Guhl August
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:04
CPC Classifications
A; A45; A45D; A45D20/00; A45D20/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A DEVICE FOR DRYING HUMAN HEAD OF HAIR COMPRISING AN UPPER HOOD PORTION AND A LOWER HOOD PORTION, SAID PORTIONS BEING SEPARATED BY A PERFORATE PARTITION, AIR INLET MEANS IN SAID UPPER HOOD PORTION AND BLOWER MEANS
Claim 2
Independent Claim
37 words
A DEVICE FOR DRYING HUMAN HEAD OF HAIR COMPRISING AN UPPER HOOD PORTION AND A LOWER HOOD PORTION, SAID PORTIONS BEING SEPARATED BY A PERFORATE PARTITION, AIR INLET MEANS IN SAID UPPER HOOD PORTION AND BLOWER MEANS
References Cited (Backward Citations)
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Cited
US1574618A
Cited
US2097952A
Cited
US2095651A
Cited
US2266111A
Cited
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Cited
US2560808A
Cited
FR1144443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |