US2755585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film illuminators
Assignee: WOLF X RAY PRODUCTS Inc
•
Filing: 1952-01-04
•
Granted: 1956-07-24
•
Expires: 1972-01-04
Abstract
No abstract record available.
Inventors
- 👤 Lubow Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:23
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/02; G02B27/022; G02B27/024; G03; G03D; G03D13/00; G03D13/02; G03D13/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2534637A
Cited
US1455474A
Cited
US1602341A
Cited
US1739057A
Cited
CH164145A
Cited
GB581088A
Cited
US2516270A
Cited
US2530821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |