US3331958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable fluorescent lamp
Assignee: Individual
•
Filing: 1964-05-04
•
Granted: 1967-07-18
•
Expires: 1984-05-04
Abstract
No abstract record available.
Inventors
- 👤 Alan J Adler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:17
CPC Classifications
F; F21; F21L; F21L4/00; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2413599A
Cited
US2435164A
Cited
US2440842A
Cited
US2668229A
Cited
US2641685A
Cited
FR1063421A
Cited
US2849598A
Cited
US3084283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |