US2429773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dusting apparatus
Assignee: —
•
Filing: —
•
Granted: 1947-10-28
•
Expires: 1964-10-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:51
CPC Classifications
A; A01; A01M; A01M9/00; A01M9/0007; A01M9/003; B; B65; B65G; B65G65/00; B65G65/30; B65G65/34; B65G65/40; B65G65/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US539102A
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US967266A
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DE351873C
Cited
GB199441A
Cited
US1666350A
Cited
US2103400A
Cited
US2098034A
Cited
US2157630A
Cited
US2246497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-27 | 1951-04-28 | 1951-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-27 | 1955-04-28 | 1955-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-27 | 1959-04-28 | 1959-10-28 | $7700.00 | Window Closed / Lapsed |