US1838017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Armature insulation process and machine
Assignee: Individual
•
Filing: 1930-10-16
•
Granted: 1931-12-22
•
Expires: 1950-10-16
Abstract
No abstract record available.
Inventors
- 👤 Harrison H Eaton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:40
CPC Classifications
H; H02; H02K; H02K15/00; H02K15/10; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49012; Y10T29/51; Y10T29/5176; Y10T29/53; Y10T29/5313; Y10T29/53143; Y10T29/53152
Claims Analysis
Total Claims: 0
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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) | 1934-12-21 | 1935-06-22 | 1935-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-12-21 | 1939-06-22 | 1939-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-12-21 | 1943-06-22 | 1943-12-22 | $7700.00 | Window Closed / Lapsed |