US2705705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction of an alpha amino acid and an nu-acyl derivative thereof
Assignee: Tee Pak Inc
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Filing: 1950-04-25
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Granted: 1955-04-05
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Expires: 1970-04-25
Abstract
No abstract record available.
Inventors
- 👤 Joseph S Chirtel
- 👤 Arthur M Mark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:52
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/08; C08G69/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
40 words
A METHOD FOR PRODUCING A SUBSTANTILLY WATER AND FAT INSOLUBLE POLYMER WHICH COMPRISES HEATING TO FUSION TEMPERATURE AN ALPHA AMINO ACID WITH UP TO AN EQUIMOLAR QUANTITY OF AN N-ACYL DERIVATIVE OF AN ALPHA AMINO ACID HAVING THE STRUCTURAL FORMULA
References Cited (Backward Citations)
FR870599A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-04 | 1958-10-04 | 1959-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-04 | 1962-10-04 | 1963-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-04 | 1966-10-04 | 1967-04-05 | $7700.00 | Window Closed / Lapsed |