Patent US1827571A successfully refreshed from Google Patents.
US1827571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulation of electrical apparatus
Assignee: General Electric Co
•
Filing: 1930-10-08
•
Granted: 1931-10-13
•
Expires: 1950-10-08
Abstract
No abstract record available.
Inventors
- 👤 Marcus E Fiene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:59
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/12; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1934-10-12 | 1935-04-13 | 1935-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-10-12 | 1939-04-13 | 1939-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-10-12 | 1943-04-13 | 1943-10-13 | $7700.00 | Window Closed / Lapsed |