Patent US4109844B1 successfully refreshed from Google Patents.
US2576576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricated thread
Assignee: Wyeth Holdings LLC
•
Filing: 1946-04-19
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Granted: 1951-11-27
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Expires: 1966-04-19
Abstract
No abstract record available.
Inventors
- 👤 Cresswell Arthur
- 👤 Jr Edwin P Johnstone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:10
CPC Classifications
D; D01; D01F; D01F4/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A NON-IRRITATING COLLAGEN SUTURE CARRYING A LUBRICATING FILM OF A PHOSPHATIDE.
Claim 2
Dependent Claim
11 words
A NON-IRRITATING COLLAGEN SUTURE CARRYING A LUBRICATING FILM OF A PHOSPHATIDE.
References Cited (Backward Citations)
US1856713A
Cited
US1872913A
Cited
US1999641A
Cited
US2039263A
Cited
US2163588A
Cited
US2195930A
Cited
US2309113A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-26 | 1955-05-28 | 1955-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-26 | 1959-05-28 | 1959-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-26 | 1963-05-28 | 1963-11-27 | $7700.00 | Window Closed / Lapsed |