US2364670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Periscopic vision device
Assignee: Standard Products Co
•
Filing: 1942-05-29
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Granted: 1944-12-12
•
Expires: 1962-05-29
Abstract
No abstract record available.
Inventors
- 👤 David R Stamy
- 👤 Charles E Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:25
CPC Classifications
G; G02; G02B; G02B23/00; G02B23/02; G02B23/08; F; F41; F41H; F41H5/00; F41H5/26; F41H5/266
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) | 1947-12-12 | 1948-06-12 | 1948-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-12-12 | 1952-06-12 | 1952-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-12-12 | 1956-06-12 | 1956-12-12 | $7700.00 | Window Closed / Lapsed |