US2956149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic light source
Assignee: Warner Bros Entertainment Inc
•
Filing: 1956-07-27
•
Granted: 1960-10-11
•
Expires: 1976-07-27
Abstract
No abstract record available.
Inventors
- 👤 Dowell Lloyd
- 👤 Ronald J Kightlinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:46
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US973685A
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US1409574A
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US2010849A
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US2085580A
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US2221890A
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US2228691A
Cited
US2461254A
Cited
US2565110A
Cited
US2632096A
Cited
US2683798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |