US3061368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheel chair
Assignee: BURTON CLARK BALDWIN
•
Filing: 1956-09-04
•
Granted: 1962-10-30
•
Expires: 1976-09-04
Abstract
No abstract record available.
Inventors
- 👤 Matthews Joseph Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:23
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/10; A61G5/1002; A61G5/08; A61G5/0808; A61G5/0816; A61G5/0825; A61G5/0891
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US557614A
Cited
DE340419C
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US1691626A
Cited
US1973962A
Cited
US2086550A
Cited
US2486015A
Cited
US2592405A
Cited
US2665743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |