Patent US2521715A successfully refreshed from Google Patents.
US2521715A
Expired / Lapsed
US
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Bathing apparatus attachment, including conveyer-supported brushes for bathtubs
Assignee: Individual
•
Filing: 1946-08-24
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Granted: 1950-09-12
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Expires: 1966-08-24
Abstract
No abstract record available.
Inventors
- 👤 Wade L Hacker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:26
CPC Classifications
A; A47; A47K; A47K7/00; A47K7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US52833A
Cited
US366110A
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US551978A
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US1314525A
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US1168497A
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US2271644A
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US2378471A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |