US2870525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of transformer assembly using divided tank and banding plate
Assignee: Allis Chalmers Corp
•
Filing: 1954-12-10
•
Granted: 1959-01-27
•
Expires: 1974-12-10
Abstract
No abstract record available.
Inventors
- 👤 Harding B Hansen
- 👤 William C Sealey
- 👤 Sten S Stenersen
- 👤 Karl P Wiederkehr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:50
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/33; H01F41/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49073
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |