US2619544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auto circuit for drive-in theaters
Assignee: Individual
•
Filing: 1949-10-05
•
Granted: 1952-11-25
•
Expires: 1969-10-05
Abstract
No abstract record available.
Inventors
- 👤 Richard A Satterfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:43
CPC Classifications
H; H04; H04R; H04R27/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US762684A
Cited
US1981689A
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US1979313A
Cited
US2109602A
Cited
US2138598A
Cited
US2144566A
Cited
US2429607A
Cited
US2280465A
Cited
US2469986A
Cited
US2501048A
Cited
US2463339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |