Patent US1888546A successfully refreshed from Google Patents.
US1888546A
Expired / Lapsed
US
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Box connection or elbow
Assignee: Appleton Electric LLC
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Filing: 1930-04-05
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Granted: 1932-11-22
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Expires: 1950-04-05
Abstract
No abstract record available.
Inventors
- 👤 Ernst G K Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:02
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/06; H02G3/0616; H02G3/0625; H02G3/0683
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1935-11-22 | 1936-05-23 | 1936-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-11-22 | 1940-05-23 | 1940-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-11-22 | 1944-05-23 | 1944-11-22 | $7700.00 | Window Closed / Lapsed |