Patent US796780A successfully refreshed from Google Patents.
Patent US3255677A successfully refreshed from Google Patents.
US3255677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Respiration bag
Assignee: Individual
•
Filing: 1963-11-26
•
Granted: 1966-06-14
•
Expires: 1983-11-26
Abstract
No abstract record available.
Inventors
- 👤 Hesse Holger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:10
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/0057; A61M16/0078; A61M16/0084
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
IN AN ARTIFICIAL RESPIRATION BAG INCLUDING AN OUTER AIRTIGHT FLEXIBLE ENVELOPE AND A LINING OF FOAM RUBBER, THE IMPROVEMENT COMPRISISNG OF A COATING ON AT LEAST THE INNERSURFACE OF THE LINING WHICH COATING IS FOLDED, WRINKLED OR CORRUGATED WHEREBY THE RISK OF CRACKS DURING THE COMPRESSION AND RESTORATION OF THE BAG IS ELIMINATED.
Claim 2
Dependent Claim
53 words
IN AN ARTIFICIAL RESPIRATION BAG INCLUDING AN OUTER AIRTIGHT FLEXIBLE ENVELOPE AND A LINING OF FOAM RUBBER, THE IMPROVEMENT COMPRISISNG OF A COATING ON AT LEAST THE INNERSURFACE OF THE LINING WHICH COATING IS FOLDED, WRINKLED OR CORRUGATED WHEREBY THE RISK OF CRACKS DURING THE COMPRESSION AND RESTORATION OF THE BAG IS ELIMINATED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |