US3355982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for simulating daylight and artifical light
Assignee: EIDP Inc
•
Filing: 1963-10-02
•
Granted: 1967-12-05
•
Expires: 1983-10-02
Abstract
No abstract record available.
Inventors
- 👤 John F Rendina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:37
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/38; H01J61/42; F; F21; F21S; F21S2/00; F21V; F21V9/00; F21V9/02; H01J61/96
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US774812A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |