Patent US2361963A successfully refreshed from Google Patents.
US2361963A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustic guard
Assignee: Individual
•
Filing: 1943-03-08
•
Granted: 1944-11-07
•
Expires: 1963-03-08
Abstract
No abstract record available.
Inventors
- 👤 Maurice C Rosenblatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:16
CPC Classifications
A; A61; A61F; A61F11/00; A61F11/06; A61F11/08; A61F11/12; F; F16; F16K; F16K15/00; F16K15/14; F16K15/144; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7835; Y10T137/7836
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1947-11-07 | 1948-05-08 | 1948-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-11-07 | 1952-05-08 | 1952-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-11-07 | 1956-05-08 | 1956-11-07 | $7700.00 | Window Closed / Lapsed |