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Patent US3443490A successfully refreshed from Google Patents.
US3443490A
Expired / Lapsed
US
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Apparatus for cutting and creasing cardboard
Assignee: Deritend Engineering Co Ltd
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Filing: 1966-06-13
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Granted: 1969-05-13
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Expires: 1986-06-13
Abstract
No abstract record available.
Inventors
- 👤 Thomas Desmond Bishop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:18
CPC Classifications
B; B26; B26D; B26D1/00; B26D1/01; B26D1/12; B26D1/14; B26D1/24; B26D1/245; B31; B31B; B31B50/00; B31B50/14; B31B50/20; B31B50/22; B31B50/25; B31B50/254
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2291789A
Cited
US3059552A
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US3111067A
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US3304193A
Cited
US3314340A
Cited
US3308723A
Cited
US3257882A
Cited
US3299801A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |