US2429939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible and demountable gymnastic chair
Assignee: Individual
•
Filing: 1945-11-03
•
Granted: 1947-10-28
•
Expires: 1965-11-03
Abstract
No abstract record available.
Inventors
- 👤 Masterson Norma Bigler
- 👤 Gould Edna Ann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:55
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/02; A47C3/021; A47C3/023; A47C5/00; A47C5/04; A47C7/00; A47C7/02; A47C7/024; A47C7/36; A47C7/40; A47C7/405; A63; A63B; A63B21/00; A63B21/00047; A63B2208/00; A63B2208/12; A63B2210/00; A63B2210/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US753815A
Cited
US2135586A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-27 | 1951-04-28 | 1951-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-27 | 1955-04-28 | 1955-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-27 | 1959-04-28 | 1959-10-28 | $7700.00 | Window Closed / Lapsed |