Patent US2615993A successfully refreshed from Google Patents.
US2615993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronically operated advertising and sound reproducing apparatus
Assignee: Individual
•
Filing: 1950-09-26
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Granted: 1952-10-28
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Expires: 1970-09-26
Abstract
No abstract record available.
Inventors
- 👤 Melvin A Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:26
CPC Classifications
G; G11; G11B; G11B3/00; G11B27/00; Y; Y10; Y10S; Y10S40/00; Y10S40/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1776992A
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US1775755A
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US1842895A
Cited
US2031074A
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US2027426A
Cited
US2068106A
Cited
US2116314A
Cited
US2076937A
Cited
US2463050A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |