US2463339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signaling device for drive-in theaters
Assignee: Autocrat Inc
•
Filing: 1947-10-24
•
Granted: 1949-03-01
•
Expires: 1967-10-24
Abstract
No abstract record available.
Inventors
- 👤 Wetzel Joseph Louis
- 👤 Demetrius G Chakiris
- 👤 Robert F Poorman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:45
CPC Classifications
G; G08; G08B; G08B5/00; G08B5/22; G08B5/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2415991A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-29 | 1952-08-30 | 1953-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-29 | 1956-08-30 | 1957-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-29 | 1960-08-30 | 1961-03-01 | $7700.00 | Window Closed / Lapsed |