US3414345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illumination device for microscopes
Assignee: Carl Zeiss AG
•
Filing: 1965-03-18
•
Granted: 1968-12-03
•
Expires: 1985-03-18
Abstract
No abstract record available.
Inventors
- 👤 Mollring Friedrich Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:35
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/06; G02B21/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1709762A
Cited
US1800044A
Cited
US1995599A
Cited
US2427689A
Cited
US2404888A
Cited
US2959097A
Cited
CH369294A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |