US2440014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polishing implement with work face consisting of replaceable fabric sheets
Assignee: Individual
•
Filing: 1945-04-27
•
Granted: 1948-04-20
•
Expires: 1965-04-27
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Ludwick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:01
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/10; A47L13/42; A47L13/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US869842A
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US1250375A
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US1709331A
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US1776710A
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US1792589A
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US1983363A
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US2073170A
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US1993571A
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US2061216A
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US2124220A
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US2300911A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-20 | 1951-10-20 | 1952-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-20 | 1955-10-20 | 1956-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-20 | 1959-10-20 | 1960-04-20 | $7700.00 | Window Closed / Lapsed |