Patent US2665689A successfully refreshed from Google Patents.
US2665689A
Expired / Lapsed
US
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Needle assembly and method of producing said assembly
Assignee: Bayer Corp
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Filing: 1951-07-03
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Granted: 1954-01-12
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Expires: 1971-07-03
Abstract
No abstract record available.
Inventors
- 👤 William F Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:58
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US222229A
Cited
US600803A
Cited
GB191515900A
Cited
FR574278A
Cited
US2217602A
Cited
US2551414A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |