US2999436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and device for automatically adjusting optical instruments
Assignee: Voigtlander AG
•
Filing: 1955-09-01
•
Granted: 1961-09-12
•
Expires: 1975-09-01
Abstract
No abstract record available.
Inventors
- 👤 Faulhaber Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:31
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/28; G02B7/36
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1866581A
Cited
US2134757A
Cited
US2403628A
Cited
US2524807A
Cited
US2699834A
Cited
US2655848A
Cited
US2831057A
Cited
US2838600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |