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US2963049A
Expired / Lapsed
US
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Spiral binder applying device
Assignee: Hans Sickinger Co
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Filing: 1956-09-25
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Granted: 1960-12-06
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Expires: 1976-09-25
Abstract
No abstract record available.
Inventors
- 👤 Biel Hans
- 👤 Pfaffle Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:53
CPC Classifications
B; B42; B42B; B42B5/00; B42B5/08; B42B5/12; B42B5/123
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2168865A
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US2177054A
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US2112991A
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US2136773A
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US2297950A
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US2300544A
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US2532443A
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US2649120A
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US2638609A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |