Patent US3368441A successfully refreshed from Google Patents.
US3368441A
Expired / Lapsed
US
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Apparatus for punching locating holes in lips of stacked plastic bags
Assignee: Continental Can Co Inc
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Filing: 1966-04-08
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Granted: 1968-02-13
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Expires: 1986-04-08
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Piazze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:40
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/02; B26F1/12; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8776; Y10T83/8785; Y10T83/8821; Y10T83/8828; Y10T83/8831; Y10T83/929; Y10T83/9411; Y10T83/9418; Y10T83/942; Y10T83/9423; Y10T83/944
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) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |