Patent US2458860A successfully refreshed from Google Patents.
US2458860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scanning lens with mounting means for sound projectors
Assignee: Kollmorgen Optical Corp
•
Filing: 1946-04-19
•
Granted: 1949-01-11
•
Expires: 1966-04-19
Abstract
No abstract record available.
Inventors
- 👤 Kogel John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:24
CPC Classifications
G; G11; G11B; G11B7/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1935300A
Cited
US2019152A
Cited
US1958996A
Cited
US2141317A
Cited
US2164747A
Cited
US2196583A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-11 | 1952-07-12 | 1953-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-11 | 1956-07-12 | 1957-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-11 | 1960-07-12 | 1961-01-11 | $7700.00 | Window Closed / Lapsed |