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US2341702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mask structure
Assignee: Individual
•
Filing: 1943-01-15
•
Granted: 1944-02-15
•
Expires: 1963-01-15
Abstract
No abstract record available.
Inventors
- 👤 Duggan James Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:46
CPC Classifications
B; B05; B05B; B05B12/00; B05B12/16; B05B12/20; B05B12/28
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) | 1947-02-14 | 1947-08-16 | 1948-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-02-14 | 1951-08-16 | 1952-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-02-14 | 1955-08-16 | 1956-02-15 | $7700.00 | Window Closed / Lapsed |