US3488485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Area light source
Assignee: TDK Micronas GmbH
•
Filing: 1966-08-19
•
Granted: 1970-01-06
•
Expires: 1986-08-19
Abstract
No abstract record available.
Inventors
- 👤 Laurence Mcgann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:19
CPC Classifications
F; F21; F21V; F21V31/00; F21S; F21S10/00; F21V3/00; F21V3/04; F21W; F21W2111/00; F21W2111/02; F21W2121/00; F21W2121/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3127112A
Cited
US2880536A
Cited
US3213751A
Cited
US3194953A
Cited
US3143300A
Cited
US3302012A
Cited
US3205755A
Cited
US3278740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |