Patent US2989903A successfully refreshed from Google Patents.
US2989903A
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US
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Carton opening apparatus and method
Assignee: Fibreboard Paper Products Corp
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Filing: 1958-07-30
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Granted: 1961-06-27
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Expires: 1978-07-30
Abstract
No abstract record available.
Inventors
- 👤 William H Wilcox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:00
CPC Classifications
B; B65; B65B; B65B43/00; B65B43/26; B65B43/28; B65B43/285; B31; B31B; B31B2100/00; B31B2100/002; B31B2120/00; B31B2120/30; B31B50/00; B31B50/004; B31B50/02; B31B50/04; B31B50/06; B31B50/062; B31B50/74; B31B50/76; B31B50/78
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) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |