US3395475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical illumination devices
Assignee: H Frost and Co Ltd
•
Filing: 1967-03-07
•
Granted: 1968-08-06
•
Expires: 1987-03-07
Abstract
No abstract record available.
Inventors
- 👤 Moss Arthur William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:26
CPC Classifications
F; F24; F24C; F24C7/00; F24C7/002; F24C7/004; G; G09; G09F; G09F13/00; G09F19/00; G09F19/02; G09F19/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US662708A
Cited
US2285535A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |