Patent US2536689A successfully refreshed from Google Patents.
US2536689A
Expired / Lapsed
US
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Method of making small metal bodies
Assignee: Duracell Inc USA
•
Filing: 1946-06-22
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Granted: 1951-01-02
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Expires: 1966-06-22
Abstract
No abstract record available.
Inventors
- 👤 Heinrich L Krebs
- 👤 Lee S Busch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:02
CPC Classifications
B; B43; B43K; B43K1/00; B22; B22F; B22F5/00; B22F5/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1545369A
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US1424406A
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US1607389A
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US2033735A
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US2243809A
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US2169280A
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US2267372A
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US2298885A
Cited
US2366487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |