US2887104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mask to mask resuscitator
Assignee: Individual
•
Filing: 1958-03-12
•
Granted: 1959-05-19
•
Expires: 1978-03-12
Abstract
No abstract record available.
Inventors
- 👤 Sovinsky Eugene
- 👤 Allan L West
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:17
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/06; A61M16/0048; A61M16/08; A61M16/0816; A61M16/0833; A61M16/0683; Y; Y10; Y10S; Y10S137/00; Y10S137/908
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1177208A
Cited
US2280050A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |