US1482387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Talking-machine picture exhibitor
Assignee: VISUALATONE CORP
•
Filing: 1921-04-05
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Granted: 1924-02-05
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Expires: 1941-04-05
Abstract
No abstract record available.
Inventors
- 👤 William J Donaldson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:44
CPC Classifications
G; G03; G03B; G03B31/00; G03B31/06
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) | 1927-02-04 | 1927-08-06 | 1928-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-02-04 | 1931-08-06 | 1932-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-02-04 | 1935-08-06 | 1936-02-05 | $7700.00 | Window Closed / Lapsed |