US2506487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulically driven rotary fountain brush
Assignee: Individual
•
Filing: 1945-01-16
•
Granted: 1950-05-02
•
Expires: 1965-01-16
Abstract
No abstract record available.
Inventors
- 👤 Margaret M Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:59
CPC Classifications
A; A46; A46B; A46B13/00; A46B13/02; A46B13/04; A46B13/06; B; B60; B60S; B60S3/00; B60S3/04; B60S3/045; B60S3/048
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1108475A
Cited
US1208713A
Cited
US1186433A
Cited
US1199780A
Cited
US1475079A
Cited
US2232493A
Cited
US2250975A
Cited
US2373050A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-01 | 1953-10-31 | 1954-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-01 | 1957-10-31 | 1958-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-01 | 1961-10-31 | 1962-05-02 | $7700.00 | Window Closed / Lapsed |