Patent US1769852A successfully refreshed from Google Patents.
US1769852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing rectifying units
Assignee: KODEL RADIO Corp
•
Filing: 1927-06-27
•
Granted: 1930-07-01
•
Expires: 1947-06-27
Abstract
No abstract record available.
Inventors
- 👤 Clarence E Ogden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:16
CPC Classifications
C; C23; C23C; C23C8/00; C23C8/80; H; H10; H10D; H10D48/00; H10D48/01; H10D48/07; H10D48/071; H10D48/075; H10P; H10P14/00; H10P14/20; H10P14/203; H10P14/34; H10P14/3402; H10P14/3434
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) | 1933-06-30 | 1933-12-30 | 1934-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-06-30 | 1937-12-30 | 1938-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-06-30 | 1941-12-30 | 1942-07-01 | $7700.00 | Window Closed / Lapsed |