US2294940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mirror backing
Assignee: Individual
•
Filing: 1940-02-17
•
Granted: 1942-09-08
•
Expires: 1960-02-17
Abstract
No abstract record available.
Inventors
- 👤 Skolnik Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:11
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/34; C03C17/36; C03C17/38; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24521; Y10T428/24537; Y10T428/24545; Y10T428/2457; Y10T428/24612; Y10T428/31504; Y10T428/31678; Y10T428/31717; Y10T428/31815
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) | 1945-09-07 | 1946-03-09 | 1946-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-09-07 | 1950-03-09 | 1950-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-09-07 | 1954-03-09 | 1954-09-08 | $7700.00 | Window Closed / Lapsed |