US3047524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glycolic acid polymer
Assignee: Standard Oil Co
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Filing: 1959-03-19
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Granted: 1962-07-31
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Expires: 1979-03-19
Abstract
No abstract record available.
Inventors
- 👤 Norman J Bowman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:51
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A COMPOSITION CONSISTING ESSENTIALLY OF THE HOMOPOLYMER OF GLYCOLIC ACID WHICH POLYMER MELTS BETWEEN 90*C. AND ABOUT 130*C. AND BETWEEN ABOUT 1 AND 5 MOL PERCENT OF AN ALCOHOL SELECTED FROM THE CLASS CONSISTING OF (A) ALIPHATIC ALCOHOLS CONTAINING ONLY HYDROGEN, OXYGEN AND 1-6 CARBON ATOMS AND (B) NITROALIPHATIC ALCOHOLS CONTAINING ONLY HYDROGEN, OXYGEN, 1-6 CARBON ATOMS AND A NITRO SUBSTITUENT.
Claim 2
Dependent Claim
61 words
A COMPOSITION CONSISTING ESSENTIALLY OF THE HOMOPOLYMER OF GLYCOLIC ACID WHICH POLYMER MELTS BETWEEN 90*C. AND ABOUT 130*C. AND BETWEEN ABOUT 1 AND 5 MOL PERCENT OF AN ALCOHOL SELECTED FROM THE CLASS CONSISTING OF (A) ALIPHATIC ALCOHOLS CONTAINING ONLY HYDROGEN, OXYGEN AND 1-6 CARBON ATOMS AND (B) NITROALIPHATIC ALCOHOLS CONTAINING ONLY HYDROGEN, OXYGEN, 1-6 CARBON ATOMS AND A NITRO SUBSTITUENT.
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) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |