US1932470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical telescope for medical and technical purposes
Assignee: Individual
•
Filing: 1932-01-28
•
Granted: 1933-10-31
•
Expires: 1952-01-28
Abstract
No abstract record available.
Inventors
- 👤 Lehmann Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:11
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/16; G02B23/22; A; A61; A61B; A61B1/00; A61B1/00163; A61B1/00174; A61B1/00177
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) | 1936-10-30 | 1937-05-01 | 1937-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-10-30 | 1941-05-01 | 1941-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-10-30 | 1945-05-01 | 1945-10-31 | $7700.00 | Window Closed / Lapsed |