US2756446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary brush having cleaning fluid applying means
Assignee: Individual
•
Filing: 1953-12-04
•
Granted: 1956-07-31
•
Expires: 1973-12-04
Abstract
No abstract record available.
Inventors
- 👤 Herman P Chittum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:54
CPC Classifications
A; A46; A46B; A46B13/00; A46B13/02; A46B13/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL43391C
Cited
FR467873A
Cited
GB175241A
Cited
GB300709A
Cited
CH149651A
Cited
US1837904A
Cited
US2367900A
Cited
US2559757A
Cited
US2668310A
Cited
DE813366C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-31 | 1960-01-30 | 1960-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-31 | 1964-01-30 | 1964-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-31 | 1968-01-30 | 1968-07-31 | $7700.00 | Window Closed / Lapsed |