Patent US4757661A successfully refreshed from Google Patents.
Patent US3020395A successfully refreshed from Google Patents.
US3020395A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighting device
Assignee: Phoenix Glass Co
•
Filing: 1957-05-27
•
Granted: 1962-02-06
•
Expires: 1977-05-27
Abstract
No abstract record available.
Inventors
- 👤 Gordon M Peltz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:18
CPC Classifications
F; F21; F21V; F21V5/00; F21V5/008; F21V5/04; F21V5/045; G; G02; G02B; G02B3/00; G02B3/02; G02B3/08; G02B5/00; G02B5/02; G02B5/0205; G02B5/021; G02B5/0215; G02B5/0221
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1370885A
Cited
US1746852A
Cited
US2022078A
Cited
US2099034A
Cited
US2124417A
Cited
US2551954A
Cited
US2758200A
Cited
US2877342A
Cited
US2853599A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |