Patent US3440392A successfully refreshed from Google Patents.
US3440392A
Expired / Lapsed
US
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Container fabrication means utilizing an electron beam
Assignee: Continental Can Co Inc
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Filing: 1964-12-02
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Granted: 1969-04-22
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Expires: 1984-12-02
Abstract
No abstract record available.
Inventors
- 👤 Paul M Erlandson
- 👤 Warren F Howeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:31
CPC Classifications
B; B23; B23K; B23K15/00; B23K15/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1141517A
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GB220391A
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US1601929A
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US2172402A
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US2567094A
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US3151231A
Cited
GB909725A
Cited
US3156810A
Cited
US3247355A
Cited
US3290478A
Cited
US3245370A
Cited
US2932720A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |