US2638198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple coin controlled mechanism
Assignee: Ex-Cell-O Corp
•
Filing: 1947-10-22
•
Granted: 1953-05-12
•
Expires: 1967-10-22
Abstract
No abstract record available.
Inventors
- 👤 Wellstein Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:18
CPC Classifications
G; G07; G07F; G07F5/00; G07F5/18; G07F1/00; G07F1/04; G07F9/00; G07F9/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1451787A
Cited
US1644067A
Cited
US1737422A
Cited
US2279664A
Cited
US2333176A
Cited
US2320378A
Cited
US2323981A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-11 | 1956-11-10 | 1957-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-11 | 1960-11-10 | 1961-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-11 | 1964-11-10 | 1965-05-12 | $7700.00 | Window Closed / Lapsed |