US1844512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated material
Assignee: Westinghouse Electric Corp
•
Filing: 1929-10-11
•
Granted: 1932-02-09
•
Expires: 1949-10-11
Abstract
No abstract record available.
Inventors
- 👤 Gerald H Mains
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:57
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; D; D21; D21J; D21J1/00; D21J1/16; Y; Y10; Y10S; Y10S238/00; Y10S238/01; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/1031; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24521; Y10T428/24545; Y10T428/31504; Y10T428/31678; Y10T428/31688
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) | 1935-02-08 | 1935-08-10 | 1936-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-02-08 | 1939-08-10 | 1940-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-02-08 | 1943-08-10 | 1944-02-09 | $7700.00 | Window Closed / Lapsed |