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US2561584A
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Assignee: Hall Mack Co
•
Filing: 1950-12-09
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Granted: 1951-07-24
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Expires: 1970-12-09
Abstract
No abstract record available.
Inventors
- 👤 George D Mcdonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:26
CPC Classifications
A; A47; A47K; A47K10/00; A47K10/16; A47K10/18; A47K10/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE17645E
Cited
US1003995A
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US1515238A
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US2003044A
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US2073719A
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US2204414A
Cited
US2419809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |