Patent US2439189A successfully refreshed from Google Patents.
US2439189A
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Staple feeder
Assignee: International Staple and Machine Co
•
Filing: 1945-11-19
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Granted: 1948-04-06
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Expires: 1965-11-19
Abstract
No abstract record available.
Inventors
- 👤 Schafroth Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:09
CPC Classifications
B; B27; B27F; B27F7/00; B27F7/17; B27F7/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US326246A
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US326153A
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US509732A
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US773184A
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US987024A
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US1586064A
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US1536252A
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US2221236A
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US2286250A
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US2268102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-06 | 1951-10-06 | 1952-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-06 | 1955-10-06 | 1956-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-06 | 1959-10-06 | 1960-04-06 | $7700.00 | Window Closed / Lapsed |