US2871580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dance instruction device
Assignee: GEORGE W FORRAND
•
Filing: 1956-06-21
•
Granted: 1959-02-03
•
Expires: 1976-06-21
Abstract
No abstract record available.
Inventors
- 👤 Russell H Samdahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:08
CPC Classifications
G; G09; G09B; G09B19/00; G09B19/0015
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2228403A
Cited
US1941777A
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US1974901A
Cited
FR786693A
Cited
US2166372A
Cited
US2402109A
Cited
FR988563A
Cited
US2657610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |