Patent US3393034A successfully refreshed from Google Patents.
US3393034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light transmitting panel
Assignee: Individual
•
Filing: 1965-05-21
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Granted: 1968-07-16
•
Expires: 1985-05-21
Abstract
No abstract record available.
Inventors
- 👤 Imai Senzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:55
CPC Classifications
F; F21; F21S; F21S11/00; F21S41/00; F21S41/20; F21S41/28; F21V; F21V5/00; F21V5/02; F21W; F21W2107/00; F21W2107/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189716568A
Cited
US737979A
Cited
US719066A
Cited
US631220A
Cited
US720138A
Cited
GB429340A
Cited
US2281524A
Cited
US2858734A
Cited
US2976759A
Cited
US3254556A
Cited
US3213753A
Cited
US3255665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |