US2853076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Therapeutic appliances
Assignee: Individual
•
Filing: 1957-02-26
•
Granted: 1958-09-23
•
Expires: 1977-02-26
Abstract
No abstract record available.
Inventors
- 👤 Helen M Sumner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:39
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/02; A61F7/0085; A63; A63B; A63B23/00; A63B23/035; A63B23/12; A63B23/16; A61F2007/0001; A61F2007/0029; A61F2007/0036; A61F2007/0087; A63B21/00; A63B21/02; A63B21/028
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |