US2881940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enclosing case for electrical or other apparatus
Assignee: General Electric Co
•
Filing: 1957-10-01
•
Granted: 1959-04-14
•
Expires: 1977-10-01
Abstract
No abstract record available.
Inventors
- 👤 Hamilton James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:56
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/08; H02G3/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2038075A
Cited
US2059671A
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US2574998A
Cited
US2457023A
Cited
US2665353A
Cited
US2706574A
Cited
US2763707A
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 |