US2954349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Neutral filter for near ultraviolet, visible, and near infrared radiation
Assignee: Individual
•
Filing: 1956-08-14
•
Granted: 1960-09-27
•
Expires: 1976-08-14
Abstract
No abstract record available.
Inventors
- 👤 Jr James R Jenness
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:18
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/20; G02B5/205
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1521055A
Cited
US1521056A
Cited
US2367446A
Cited
US2386855A
Cited
US2533196A
Cited
US2400091A
Cited
US2472680A
Cited
US2736665A
Cited
US2730597A
Cited
US2824060A
Cited
US2863788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |