US2240228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable abdominal exercising apparatus
Assignee: Individual
•
Filing: 1940-06-24
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Granted: 1941-04-29
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Expires: 1960-06-24
Abstract
No abstract record available.
Inventors
- 👤 Myron R Schall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:26
CPC Classifications
A; A63; A63B; A63B23/00; A63B23/02; A63B23/0205; A63B23/0216; A63B21/00; A63B21/40; A63B21/4027; A63B21/4029; A63B23/0211; A63B2208/00; A63B2208/02; A63B2208/0242; A63B2208/0252; A63B69/00; A63B69/0057; A63B69/0062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-04-28 | 1944-10-28 | 1945-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-04-28 | 1948-10-28 | 1949-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-04-28 | 1952-10-28 | 1953-04-29 | $7700.00 | Window Closed / Lapsed |