US2575768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skimmer
Assignee: Individual
•
Filing: 1949-05-27
•
Granted: 1951-11-20
•
Expires: 1969-05-27
Abstract
No abstract record available.
Inventors
- 👤 Harold C Pearsall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:45
CPC Classifications
A; A47; A47J; A47J43/00; A47J43/28; A47J43/284; A47J43/285
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE262463C
Cited
US692697A
Cited
US1028717A
Cited
US1036822A
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US1471475A
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FR646421A
Cited
US2134622A
Cited
US2354481A
Cited
US2368065A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |