US2471186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clothespin
Assignee: Individual
•
Filing: 1946-01-29
•
Granted: 1949-05-24
•
Expires: 1966-01-29
Abstract
No abstract record available.
Inventors
- 👤 Ethel P Ashcroft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:00
CPC Classifications
D; D06; D06F; D06F55/00; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44641; Y10T24/44769; Y10T24/44897; Y10T24/44906
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US77268A
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US135501A
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US143024A
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US1876464A
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US2012422A
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US1225630A
Cited
US1630017A
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US1725986A
Cited
US2205524A
Cited
US2276377A
Cited
US2255467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-23 | 1952-11-22 | 1953-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-23 | 1956-11-22 | 1957-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-23 | 1960-11-22 | 1961-05-24 | $7700.00 | Window Closed / Lapsed |