US2760419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminator
Assignee: JOSEPH GELB Co
•
Filing: 1951-10-30
•
Granted: 1956-08-28
•
Expires: 1971-10-30
Abstract
No abstract record available.
Inventors
- 👤 Gelb Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:47
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1246974A
Cited
US1800049A
Cited
GB373107A
Cited
US2153186A
Cited
US2427923A
Cited
US2374469A
Cited
US2494282A
Cited
US2534794A
Cited
US2534784A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |