Patent US2777941A successfully refreshed from Google Patents.
US2777941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illuminator for musical instruments
Assignee: Individual
•
Filing: 1954-03-01
•
Granted: 1957-01-15
•
Expires: 1974-03-01
Abstract
No abstract record available.
Inventors
- 👤 Jack C Cookerly
- 👤 George R Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:37
CPC Classifications
F; F21; F21V; F21V33/00; F21V33/0004; F21V33/0052; F21V33/0056
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US779453A
Cited
US1457061A
Cited
US1485472A
Cited
US1582437A
Cited
US2290282A
Cited
US2341048A
Cited
US2458174A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |