US2649947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coin-controlled crediting and debiting apparatus for vending machines
Assignee: Guardian Electric Manufacturing Co
•
Filing: 1947-07-09
•
Granted: 1953-08-25
•
Expires: 1967-07-09
Abstract
No abstract record available.
Inventors
- 👤 Marvin G Nelsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:26
CPC Classifications
G; G07; G07F; G07F5/00; G07F5/20; G07F5/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB403366A
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US2122550A
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US2073870A
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US2354896A
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US2330186A
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US2384585A
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US2325536A
Cited
GB578158A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |