Patent US3427914A successfully refreshed from Google Patents.
US3427914A
Expired / Lapsed
US
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Punch construction
Assignee: General Binding Corp
•
Filing: 1965-08-26
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Granted: 1969-02-18
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Expires: 1985-08-26
Abstract
No abstract record available.
Inventors
- 👤 Henry N Staats
- 👤 Donald P Vincent
- 👤 John F Winkelmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:22
CPC Classifications
B; B26; B26D; B26D7/00; B26D7/01; B26D7/015; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/561; Y10T408/5623; Y10T83/00; Y10T83/748; Y10T83/7593; Y10T83/7667; Y10T83/7673; Y10T83/869; Y10T83/8759; Y10T83/8821; Y10T83/8828; Y10T83/8831
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |