Patent US3603807A successfully refreshed from Google Patents.
Patent US3408659A successfully refreshed from Google Patents.
US3408659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial blood vessels and process of making same
Assignee: Individual
•
Filing: 1965-07-21
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Granted: 1968-11-05
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Expires: 1985-07-21
Abstract
No abstract record available.
Inventors
- 👤 Thiele Heinrich
- 👤 Wiechen Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:01
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/50; A61L27/507; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2/062; A61L27/36; A61L27/3604; A61L27/3625; A61L27/3683; Y; Y10; Y10S; Y10S623/00; Y10S623/915; Y10S623/916
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A PROCESS OF PRODUCING ARTIFICIAL TUBULAR BODIES FOR THE REPLACEMENT OF NATURAL TUBULAR PARTS OF THE HUMAN AND ANIMAL BODY, SAID PROCESS COMPRISING THE STEPS OF (A) CAUSING A NATURAL TUBULAR PART OF THE HUMAN AND ANIMAL BODY TO SWELL, (B) MECHANICALLY SEPARATING SAID SWOLLEN TUBULAR PART INTO SEPARATE LAYERS ACCORDING TO THE SPECIFIC HISTOLOGICAL STRUCTURE OF SAID NATURAL STARTING MATERIAL, (C) SEPARATELY DISSOLVING SAID LAYERS IN SOLVENTS WITHOUT SUBSTANTIALLY AFFECTING THE PROTEIN COMPONENTS OF SAID LAYERS, AND (D) SUCCESSIVELY CAUSING FORMATION OF SUPERPOSED GELS FROM SAID SOLUTIONS TO RECONSTRUCT THE TUBULAR PART OF THE HUMAN AND ANIMAL BODY FROM SAID SOLUTIONS.
Claim 2
Dependent Claim
102 words
A PROCESS OF PRODUCING ARTIFICIAL TUBULAR BODIES FOR THE REPLACEMENT OF NATURAL TUBULAR PARTS OF THE HUMAN AND ANIMAL BODY, SAID PROCESS COMPRISING THE STEPS OF (A) CAUSING A NATURAL TUBULAR PART OF THE HUMAN AND ANIMAL BODY TO SWELL, (B) MECHANICALLY SEPARATING SAID SWOLLEN TUBULAR PART INTO SEPARATE LAYERS ACCORDING TO THE SPECIFIC HISTOLOGICAL STRUCTURE OF SAID NATURAL STARTING MATERIAL, (C) SEPARATELY DISSOLVING SAID LAYERS IN SOLVENTS WITHOUT SUBSTANTIALLY AFFECTING THE PROTEIN COMPONENTS OF SAID LAYERS, AND (D) SUCCESSIVELY CAUSING FORMATION OF SUPERPOSED GELS FROM SAID SOLUTIONS TO RECONSTRUCT THE TUBULAR PART OF THE HUMAN AND ANIMAL BODY FROM SAID SOLUTIONS.
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) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |