Patent US2949529A successfully refreshed from Google Patents.
US2949529A
Expired / Lapsed
US
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Illuminating devices for the phonograph
Assignee: Individual
•
Filing: 1957-05-20
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Granted: 1960-08-16
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Expires: 1977-05-20
Abstract
No abstract record available.
Inventors
- 👤 Ogawa Chusaku
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:58
CPC Classifications
F; F21; F21V; F21V33/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE625688C
Cited
US1249288A
Cited
US1261667A
Cited
GB269029A
Cited
US2309060A
Cited
US2582948A
Cited
US2844710A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-16 | 1964-02-15 | 1964-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-16 | 1968-02-15 | 1968-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-16 | 1972-02-15 | 1972-08-16 | $7700.00 | Window Closed / Lapsed |