US2618864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair drying attachment for vacuum cleaners
Assignee: Individual
•
Filing: 1948-08-02
•
Granted: 1952-11-25
•
Expires: 1968-08-02
Abstract
No abstract record available.
Inventors
- 👤 Mary O O'neil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:05
CPC Classifications
A; A45; A45D; A45D20/00; A45D20/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1703551A
Cited
US371408A
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US845047A
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US1352647A
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US1685345A
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FR587244A
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US1570045A
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US1661553A
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US1784139A
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US1765380A
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US1998924A
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US2150720A
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US2139001A
Cited
US2227262A
Cited
US2329352A
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US2481407A
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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) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |