US2751027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endless track supported invalid chair
Assignee: Individual
•
Filing: 1952-05-19
•
Granted: 1956-06-19
•
Expires: 1972-05-19
Abstract
No abstract record available.
Inventors
- 👤 Robert B Mclaughlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:46
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/06; A61G5/061; A61G5/066; B; B62; B62D; B62D55/00; B62D55/06; B62D55/075; Y; Y10; Y10S; Y10S280/00; Y10S280/10; Y10S297/00; Y10S297/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1036117A
Cited
US1443619A
Cited
US1953563A
Cited
US2319008A
Cited
US2592023A
Cited
FR980237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-19 | 1959-12-19 | 1960-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-19 | 1963-12-19 | 1964-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-19 | 1967-12-19 | 1968-06-19 | $7700.00 | Window Closed / Lapsed |