Patent US2919457A successfully refreshed from Google Patents.
US2919457A
Expired / Lapsed
US
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Dust mop with replaceable dusting material
Assignee: Lockport Mills Inc
•
Filing: 1956-05-10
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Granted: 1960-01-05
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Expires: 1976-05-10
Abstract
No abstract record available.
Inventors
- 👤 Thomas D Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:30
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/20
Claims Analysis
Total Claims: 0
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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) | 1963-01-04 | 1963-07-06 | 1964-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-04 | 1967-07-06 | 1968-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-04 | 1971-07-06 | 1972-01-05 | $7700.00 | Window Closed / Lapsed |