Patent USRE30170E successfully refreshed from Google Patents.
USRE30170E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrolyzable polymers of amino acid and hydroxy acids
Assignee: Sutures Inc
•
Filing: 1977-10-11
•
Granted: 1979-12-18
•
Expires: 1997-10-11
Abstract
Abstract Hydrolyzable film- and fiber-forming polymers having a plurality of repeating units of the formula: ##STR1## wherein R is lower alkyl, aryl, alkaryl and aralkyl; R 1 , R 2 and R 3 are each selected from H or lower alkyl with the proviso that at least one of R 1 , R 2 , R 3 is H; and n is an integer of 0 to 2.
Inventors
- 👤 Murray Goodman
- 👤 Gerald S. Kirshenbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:59
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/44
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
75 words
to 2..]. .[.2. A film- and fiber-forming polymer of claim 1 wherein R is lower alkyl..]. .[.3. film- and fiber-forming polymer of claim 2 wherein the lower alkyl is methyl..]. .[.4. A film- and fiber-forming polymer of claim 1 wherein the R is aralkyl..]. .[.5. A film- and fiber-forming polymer of claim 1 wherein the aralkyl is benzyl..]. .[.6. A film- and fiber-forming polymer of claim 1 wherein the repeating unit has the formula: ##STR10##
Claim 2
Dependent Claim
17 words
.[.7. A film- and fiber-forming polymer of claim 1 wherein the repeating unit has the formula: ##STR11##
Claim 3
Dependent Claim
17 words
.[.8. A film- and fiber-forming polymer of claim 1 wherein the repeating unit has the formula: ##STR12##
Claim 4
Dependent Claim
17 words
.[.9. A film- and fiber-forming polymer of claim 1 wherein the repeating unit has the formula: ##STR13##
Claim 5
Dependent Claim
43 words
.[.10. A fiber of the polymer of claim 1..]. .[.11. A fiber of the polymer of claim 6..]. .[.12. A fiber of the polymer of claim 7..]. .[.13. A fiber of the polymer of claim 8..]. .[.14. A fiber of the polymer of
Claim 6
Dependent Claim
83 words
claim 9..]. 15. .[.A.]. .Iadd.An absorbable .Iaddend.surgical suture .[.comprising polyfilaments of the polymer of clam 1.]. .Iadd.of a hydrolyzable film- and fiber-forming polymer having a plurality of repeating units of the formula: ##STR14## wherein R is lower alkyl, aryl, alkaryl or aralkyl; R 1 , R 2 and R 3 are each selected from H or lower alkyl with the proviso that at least one of R 1 , R 2 and R 3 is H; and n is an integer of 0
Claim 7
Dependent Claim
26 words
to 2.Iaddend.. 16. .[.A.]. .Iadd.The .Iaddend.surgical suture .[.comprising polyfilaments of the polymer of claim 6.]. .Iadd.of claim 15 wherein the repeating unit has the formula: ##STR15##
Claim 8
Dependent Claim
25 words
.Iaddend. 17. .[.A.]. .Iadd.The .Iaddend.surgical suture .[.comprising polyfilaments of the polymer of claim 7.]. .Iadd.of claim 15 wherein the repeating unit has the formula: ##STR16##
Claim 9
Dependent Claim
23 words
.[.A.]. .Iadd.The .Iaddend.surgical suture .[.comprising polyfilaments of the polymer of claim 8.]. .Iadd.of claim 15 wherein the repeating unit has the formula: ##STR17##
Claim 10
Dependent Claim
25 words
.Iaddend. 19. .[.A.]. .Iadd.The .Iaddend.surgical suture .[.comprising polyfilaments of the polymer of claim 9.]. .Iadd.of claim 15 wherein the repeating unit has the formula: ##STR18##.Iaddend.
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) | 1982-12-17 | 1983-06-18 | 1983-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-17 | 1987-06-18 | 1987-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-17 | 1991-06-18 | 1991-12-18 | $7700.00 | Window Closed / Lapsed |