US2588974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical aligner
Assignee: Eastman Kodak Co
•
Filing: 1950-03-07
•
Granted: 1952-03-11
•
Expires: 1970-03-07
Abstract
No abstract record available.
Inventors
- 👤 Emile A Fontaine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:08
CPC Classifications
B; B25; B25D; B25D5/00; B25D5/02; G; G02; G02B; G02B27/00; G02B27/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE48010C
Cited
US575202A
Cited
DE366290C
Cited
US1531693A
Cited
US1501979A
Cited
US1755036A
Cited
US2194059A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-11 | 1955-09-10 | 1956-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-11 | 1959-09-10 | 1960-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-11 | 1963-09-10 | 1964-03-11 | $7700.00 | Window Closed / Lapsed |