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US2886256A
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Assignee: Individual
•
Filing: 1953-06-17
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Granted: 1959-05-12
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Expires: 1973-06-17
Abstract
No abstract record available.
Inventors
- 👤 John D Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:06
CPC Classifications
A; A47; A47F; A47F7/00; A47F7/16; G; G09; G09F; G09F11/00; G09F11/24; G09F11/29
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1306975A
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US676445A
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US853710A
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GB271727A
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US1670807A
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US1939181A
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US1967056A
Cited
US2419476A
Cited
US2676212A
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US2635373A
Cited
US2658952A
Cited
US2722069A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |