Patent US3030582A successfully refreshed from Google Patents.
US1978163A
Expired / Lapsed
US
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Method of making electrical resistance units
Assignee: Allen Bradley Co LLC
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Filing: 1931-09-16
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Granted: 1934-10-23
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Expires: 1951-09-16
Abstract
No abstract record available.
Inventors
- 👤 George E Megow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:59
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/02; B; B29; B29C; B29C48/00; B29C48/03; B29C48/06; B29C48/25; B29C48/30; B29C48/304; B29C48/36; B29C48/395; B29C48/445
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) | 1937-10-22 | 1938-04-23 | 1938-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-10-22 | 1942-04-23 | 1942-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-10-22 | 1946-04-23 | 1946-10-23 | $7700.00 | Window Closed / Lapsed |