Patent US2803931A successfully refreshed from Google Patents.
US2803931A
Expired / Lapsed
US
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Scoring or perforating attachment for package-sealing rolls
Assignee: Ivers Lee Co
•
Filing: 1954-03-24
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Granted: 1957-08-27
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Expires: 1974-03-24
Abstract
No abstract record available.
Inventors
- 👤 Edward J David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:26
CPC Classifications
B; B65; B65B; B65B61/00; B65B61/02; B65B51/00; B65B51/10; B65B51/16; Y; Y10; Y10T; Y10T83/00; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/4798
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US309433A
Cited
US1622265A
Cited
US1996127A
Cited
US2083617A
Cited
US2381091A
Cited
US2374504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |