US2480131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical musical instrument
Assignee: HAMMOND INSTR CO
•
Filing: 1943-11-26
•
Granted: 1949-08-30
•
Expires: 1963-11-26
Abstract
No abstract record available.
Inventors
- 👤 Hammond Laurens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:19
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H1/04; G10H1/053; G10H1/0535
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1409657A
Cited
US2286587A
Cited
US2321366A
Cited
US2187251A
Cited
US2254284A
Cited
US2266030A
Cited
US2357191A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-29 | 1953-02-28 | 1953-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-29 | 1957-02-28 | 1957-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-29 | 1961-02-28 | 1961-08-30 | $7700.00 | Window Closed / Lapsed |