US2067701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflecting glass
Assignee: A M DUCEY
•
Filing: 1933-06-27
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Granted: 1937-01-12
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Expires: 1953-06-27
Abstract
No abstract record available.
Inventors
- 👤 Cleveland A James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:26
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/12; G02B5/126; F; F21; F21S; F21S43/00; F21S43/20; F21S43/26
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) | 1940-01-12 | 1940-07-13 | 1941-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-01-12 | 1944-07-13 | 1945-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-01-12 | 1948-07-13 | 1949-01-12 | $7700.00 | Window Closed / Lapsed |