Patent US3052237A successfully refreshed from Google Patents.
US3052237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical dressings
Assignee: Individual
•
Filing: 1960-06-07
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Granted: 1962-09-04
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Expires: 1980-06-07
Abstract
No abstract record available.
Inventors
- 👤 Chand Gian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:13
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/22; A61L15/26; A61L15/28; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31971; Y10T428/31975
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A SURGICAL DRESSING COMPRISING IN COMBINATION, A SHEET-LIKE MAMBER OF CELLULOSE ACETATE HAVING A POLYETHYLENE GLYCOL DISTRIBUTED THERETHROUGH; AND A COATING CONSISTING ESSENTIALLY OF A SWELLING AGENT ON AT LEAST ONE FACE OF SAID SHEET.
Claim 2
Dependent Claim
35 words
A SURGICAL DRESSING COMPRISING IN COMBINATION, A SHEET-LIKE MAMBER OF CELLULOSE ACETATE HAVING A POLYETHYLENE GLYCOL DISTRIBUTED THERETHROUGH; AND A COATING CONSISTING ESSENTIALLY OF A SWELLING AGENT ON AT LEAST ONE FACE OF SAID SHEET.
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) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |