US3244669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polypropylene stabilized with disalicyl thiodiglycol
Assignee: Montedison SpA
•
Filing: 1962-09-11
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Granted: 1966-04-05
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Expires: 1982-09-11
Abstract
No abstract record available.
Inventors
- 👤 Caldo Cornelio
- 👤 Algieri Salvatore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:33
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/37; C08K5/375; C07; C07C; C07C323/00; C07D; C07D209/00; C07D209/56; C07D209/80; C07D209/82; C07D209/86; C08K5/372; C08K5/378
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A COMPOSITION STABILIZED AGAINST THE ACTION OF HAT, AGEING, AND LIGHT, SAID COMPOSITION COMPRISING CRYSTALLINE POLYPROPYLENE CONSISTING OF OVER 50% OF ISOTACTIC MACROMOLECULES AND FROM ABOUT 0.02 TO 2% BY WEIGHT OF SAID POLYPROPYLENE OF DISALICYL TIODIGLYCOL.
Claim 2
Dependent Claim
37 words
A COMPOSITION STABILIZED AGAINST THE ACTION OF HAT, AGEING, AND LIGHT, SAID COMPOSITION COMPRISING CRYSTALLINE POLYPROPYLENE CONSISTING OF OVER 50% OF ISOTACTIC MACROMOLECULES AND FROM ABOUT 0.02 TO 2% BY WEIGHT OF SAID POLYPROPYLENE OF DISALICYL TIODIGLYCOL.
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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |