Patent US3279640A successfully refreshed from Google Patents.
US3279640A
Expired / Lapsed
US
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Steel drum construction
Assignee: UNITED STEEL BARREL CO
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Filing: 1961-06-16
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Granted: 1966-10-18
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Expires: 1981-06-16
Abstract
No abstract record available.
Inventors
- 👤 Howard W Dodson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:31
CPC Classifications
B; B65; B65D; B65D7/00; B65D7/02; B65D7/04; B65D7/045; B65D21/00; B65D21/02; B65D21/0209; B65D21/0217; B65D21/0219
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |