Patent US3445948A successfully refreshed from Google Patents.
US3445948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical illumination devices
Assignee: H Frost and Co Ltd
•
Filing: 1966-06-06
•
Granted: 1969-05-27
•
Expires: 1986-06-06
Abstract
No abstract record available.
Inventors
- 👤 Arthur William Moss
- 👤 Norman Jones
- 👤 Kenneth Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:49
CPC Classifications
F; F24; F24C; F24C7/00; F24C7/002; F24C7/004; F21; F21S; F21S10/00; F21S10/04; F21V; F21V9/00; F21V9/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |