US2921791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exercising apparatus
Assignee: Individual
•
Filing: 1957-05-17
•
Granted: 1960-01-19
•
Expires: 1977-05-17
Abstract
No abstract record available.
Inventors
- 👤 William E Berne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:40
CPC Classifications
A; A63; A63B; A63B23/00; A63B23/035; A63B23/0355; A63B21/00; A63B21/012; A63B21/015; A63B21/06; A63B21/0615; A63B21/08; A63B21/40; A63B21/4001; A63B21/4027; A63B21/4033; A63B21/4035; A63B21/4041; A63B21/4043; A63B21/4047; A63B2208/00; A63B2208/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US547730A
Cited
US413015A
Cited
US1703104A
Cited
US2209034A
Cited
US2543729A
Cited
US2567593A
Cited
US2645482A
Cited
US2817524A
Cited
US2806723A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |