US2687724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inoculant injector instrument
Assignee: GEOFFREY W WALKER
•
Filing: 1950-03-02
•
Granted: 1954-08-31
•
Expires: 1970-03-02
Abstract
No abstract record available.
Inventors
- 👤 Ziherl Frank
- 👤 Arthur S Kish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:46
CPC Classifications
A; A61; A61M; A61M5/00; A61M5/178; A61M5/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US411375A
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US1144343A
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FR505931A
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US1569457A
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US2047010A
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US2295849A
Cited
US2374368A
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US2322245A
Cited
US2413303A
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US2550163A
Cited
GB624958A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-30 | 1958-03-01 | 1958-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-30 | 1962-03-01 | 1962-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-30 | 1966-03-01 | 1966-08-31 | $7700.00 | Window Closed / Lapsed |