US3773737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrolyzable polymers of amino acid and hydroxy acids
Assignee: Sutures Inc
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Filing: 1971-06-09
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Granted: 1973-11-20
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Expires: 1991-06-09
Abstract
Abstract HYDROLYZABLE FILM- AND FIBER-FORMING POLYMERS HAVING A PLURALITY OF REPEATING UNITS OF THE FORMULA: -NH-C(-R)(-R1)-COO-C(-R2)(-R3)-(CH2)N-CO- WHEREIN R IS LOWER ALKYL, ARYL, ALKARYL AND ARALKYL; R1, R2 AND R3 ARE EACH SELECTED FROM H OR LOWER ALKYL WITH THE PROVISO THAT AT LEAST ONE OF R1, R2, R3 IS H; AND N IS AN INTEGER OF 0 TO 2.
Inventors
- 👤 M Goodman
- 👤 G Kirshenbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:15
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/44; A; A61; A61L; A61L17/00; A61L17/06; A61L17/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |