US2489576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple plunger selector system
Assignee: BUCKLEY MUSIC SYSTEM Inc
•
Filing: 1945-05-04
•
Granted: 1949-11-29
•
Expires: 1965-05-04
Abstract
No abstract record available.
Inventors
- 👤 Earle G Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:08
CPC Classifications
G; G07; G07F; G07F5/00; G07F5/26; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20238; Y10T74/20244
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US503157A
Cited
US1682211A
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US1271378A
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GB117073A
Cited
US1465384A
Cited
US2236697A
Cited
US2249122A
Cited
US2317888A
Cited
US2331697A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-28 | 1953-05-30 | 1953-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-28 | 1957-05-30 | 1957-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-28 | 1961-05-30 | 1961-11-29 | $7700.00 | Window Closed / Lapsed |