US2480001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microscope fine adjustment mechanism
Assignee: WOLLENSAK OPTICAL CO
•
Filing: 1946-12-30
•
Granted: 1949-08-23
•
Expires: 1966-12-30
Abstract
No abstract record available.
Inventors
- 👤 George K Czarnikow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:56
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/24; G02B21/241; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/188; Y10T74/18808
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |