US1219682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording correlated light and sound effects.
Assignee: Individual
•
Filing: 1915-09-24
•
Granted: 1917-03-20
•
Expires: 1935-09-24
Abstract
No abstract record available.
Inventors
- 👤 William Baldwin Vansize
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:33
CPC Classifications
G; G03; G03B; G03B31/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1920-03-19 | 1920-09-18 | 1921-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-03-19 | 1924-09-18 | 1925-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-03-19 | 1928-09-18 | 1929-03-20 | $7700.00 | Window Closed / Lapsed |