US2517031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flash producing apparatus
Assignee: GTE Sylvania Inc
•
Filing: 1946-03-02
•
Granted: 1950-08-01
•
Expires: 1966-03-02
Abstract
No abstract record available.
Inventors
- 👤 Rochester Nathaniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:11
CPC Classifications
H; H05; H05B; H05B41/00; H05B41/14; H05B41/30; H05B41/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2178423A
Cited
US2331771A
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US2408764A
Cited
US2324075A
Cited
US2342257A
Cited
US2358796A
Cited
US2416718A
Cited
US2411898A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-31 | 1954-01-30 | 1954-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-31 | 1958-01-30 | 1958-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-31 | 1962-01-30 | 1962-08-01 | $7700.00 | Window Closed / Lapsed |