Patent US2571486A successfully refreshed from Google Patents.
US2598417A
Expired / Lapsed
US
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Blowgun
Assignee: EASTMAN Manufacturing Co
•
Filing: 1946-11-09
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Granted: 1952-05-27
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Expires: 1966-11-09
Abstract
No abstract record available.
Inventors
- 👤 Leroy K Niemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:29
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/005; F; F16; F16K; F16K21/00; F16K21/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US849121A
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US1568169A
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US1698961A
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US2035693A
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US2078315A
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US2133147A
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US2208031A
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US2208032A
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US2314553A
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US2369104A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |