US2820455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Neck brace
Assignee: Individual
•
Filing: 1953-12-28
•
Granted: 1958-01-21
•
Expires: 1973-12-28
Abstract
No abstract record available.
Inventors
- 👤 Newton J Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:51
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A61F5/04; A61F5/05; A61F5/055; Y; Y10; Y10S; Y10S128/00; Y10S128/23
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US183376A
Cited
US1101954A
Cited
US1930440A
Cited
US2000344A
Cited
US2166229A
Cited
US2223276A
Cited
US2474200A
Cited
US2736314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-20 | 1961-07-22 | 1962-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-20 | 1965-07-22 | 1966-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-20 | 1969-07-22 | 1970-01-21 | $7700.00 | Window Closed / Lapsed |