US3107172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molded product containing poly-beta-hydroxybutyric acid and method of making
Assignee: WR Grace and Co
•
Filing: 1960-12-30
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Granted: 1963-10-15
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Expires: 1980-12-30
Abstract
No abstract record available.
Inventors
- 👤 James N Baptist
- 👤 Frank X Werber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:23
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/06; C12; C12P; C12P7/00; C12P7/62; C12P7/625
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
THE METHOD OF MAKING A MOLDED PRODUCT COMPRISING SUBJECTING, AT A TEMPERATURE OF 350 TO 390*F. AND AT A PRESSURE OF AT LEAST 100 P.S.I., A MOLDING COMPOSITION CONSISTING ESSENTIALLY OF DRIED BACTERIAL CONTAINING 40-95% BY WEIGHT POLY-B-HYDROXYBUTYRIC ACID.
Claim 2
Independent Claim
39 words
THE METHOD OF MAKING A MOLDED PRODUCT COMPRISING SUBJECTING, AT A TEMPERATURE OF 350 TO 390*F. AND AT A PRESSURE OF AT LEAST 100 P.S.I., A MOLDING COMPOSITION CONSISTING ESSENTIALLY OF DRIED BACTERIAL CONTAINING 40-95% BY WEIGHT POLY-B-HYDROXYBUTYRIC ACID.
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) | 1966-10-14 | 1967-04-15 | 1967-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-14 | 1971-04-15 | 1971-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-14 | 1975-04-15 | 1975-10-15 | $7700.00 | Window Closed / Lapsed |