Patent US2846257A successfully refreshed from Google Patents.
US2846257A
Expired / Lapsed
US
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Locking device for steel barrels and drums
Assignee: Individual
•
Filing: 1954-03-23
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Granted: 1958-08-05
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Expires: 1974-03-23
Abstract
No abstract record available.
Inventors
- 👤 Sherrill Charles Linwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:44
CPC Classifications
B; B65; B65D; B65D45/00; B65D45/02; B65D45/28; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T292/228; Y10T292/34; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5854; Y10T70/5867
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) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |