US2569795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scalp-treating device
Assignee: Individual
•
Filing: 1949-09-01
•
Granted: 1951-10-02
•
Expires: 1969-09-01
Abstract
No abstract record available.
Inventors
- 👤 Hillard M Avery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:50
CPC Classifications
A; A61; A61H; A61H7/00; A61H7/006; A61H2201/00; A61H2201/16; A61H2201/1602; A61H2201/1604; A61H2201/1607; A61H2201/1609; A61H2201/165; A61H2205/00; A61H2205/02; A61H2205/021; A61H2205/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US309360A
Cited
US861349A
Cited
US998804A
Cited
US1821979A
Cited
US2123418A
Cited
US2120872A
Cited
US2369881A
Cited
US2435894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |