US2425068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drawing medium and method of making the same
Assignee: LOUIS S SANDERS
•
Filing: 1943-11-06
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Granted: 1947-08-05
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Expires: 1963-11-06
Abstract
No abstract record available.
Inventors
- 👤 Maurice D Mcintosh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:30
CPC Classifications
G; G03; G03F; G03F1/00; G03F1/68; Y; Y10; Y10S; Y10S430/00; Y10S430/152; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24835
Claims Analysis
Total Claims: 0
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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) | 1950-08-04 | 1951-02-03 | 1951-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-04 | 1955-02-03 | 1955-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-04 | 1959-02-03 | 1959-08-05 | $7700.00 | Window Closed / Lapsed |