US3152976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of collagenous materials
Assignee: Ethicon Inc
•
Filing: 1961-09-21
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Granted: 1964-10-13
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Expires: 1981-09-21
Abstract
No abstract record available.
Inventors
- 👤 Kuntz Eloise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:27
CPC Classifications
A; A61; A61L; A61L17/00; A61L17/06; A61L17/08; C; C08; C08H; C08H1/00; C08H1/06; C09; C09H; C09H7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A METHOD FOR PREPARING AN IRREVERSIBLY CROSS-LINKED, THERMOSTABLE COLLAGENOUS POLYMER WHICH COMRPISES THE STEP OF IRRADIATING A COLLAGENOUS STARTING MATERIAL IN THE PRESENCE OF A PHOTOSENSITIVE DYE PHOTOCATALYST.
Claim 2
Independent Claim
28 words
A METHOD FOR PREPARING AN IRREVERSIBLY CROSS-LINKED, THERMOSTABLE COLLAGENOUS POLYMER WHICH COMRPISES THE STEP OF IRRADIATING A COLLAGENOUS STARTING MATERIAL IN THE PRESENCE OF A PHOTOSENSITIVE DYE PHOTOCATALYST.
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) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |