Patent US2861499A successfully refreshed from Google Patents.
US2861499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reading device for characters represented on a plate in micro-reproduction
Assignee: Individual
•
Filing: 1955-02-09
•
Granted: 1958-11-25
•
Expires: 1975-02-09
Abstract
No abstract record available.
Inventors
- 👤 Korner Theodor
- 👤 Pohl Wilhelm Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:36
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/02; G02B27/021
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US7961A
Cited
US443359A
Cited
US533324A
Cited
US540184A
Cited
US1007760A
Cited
US2127711A
Cited
US2166988A
Cited
US2533628A
Cited
US2556806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |