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Patent US2940443A successfully refreshed from Google Patents.
US2940443A
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Assignee: HAROLD J NUSSBAUM
•
Filing: 1956-05-25
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Granted: 1960-06-14
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Expires: 1976-05-25
Abstract
No abstract record available.
Inventors
- 👤 Eleanor S Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:44
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/37; A61F5/3769; A61F5/3776; A61F5/3784
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1704579A
Cited
US2215951A
Cited
US2374712A
Cited
US2569076A
Cited
US2524429A
Cited
US2693177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |