US2882505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Potting of electrical apparatus
Assignee: AT&T Inc
•
Filing: 1954-06-15
•
Granted: 1959-04-14
•
Expires: 1974-06-15
Abstract
No abstract record available.
Inventors
- 👤 Herbert S Feder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:45
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/08; H01F27/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB175239A
Cited
US1947085A
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GB500877A
Cited
US2221671A
Cited
US2424853A
Cited
US2559122A
Cited
US2595465A
Cited
US2464568A
Cited
US2574971A
Cited
US2567315A
Cited
US2633426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |