Patent US2357122A successfully refreshed from Google Patents.
US3205767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photomicrographic methods and apparatus
Assignee: Ernst Leitz Wetzlar GmbH
•
Filing: 1962-06-22
•
Granted: 1965-09-14
•
Expires: 1982-06-22
Abstract
No abstract record available.
Inventors
- 👤 Weber Klaus
- 👤 Leonhardt Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:53
CPC Classifications
G; G01; G01J; G01J1/00; G01J1/10; G01J1/12; G01J1/14; G02; G02B; G02B21/00; G02B21/0096; G03; G03B; G03B27/00; G03B27/72; G03B27/80; G03B7/00; G03B7/02; G03B7/08; G03B7/081; G03B7/083; G03C; G03C5/00; G03C5/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1213485A
Cited
US1954338A
Cited
US2152513A
Cited
US2404888A
Cited
US2464162A
Cited
US2893289A
Cited
GB782422A
Cited
AT195249B
Cited
US2910913A
Cited
US2952188A
Cited
US3106129A
Cited
US3130634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |