US3228909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyoxymethylene polymer stabilized with sulfur
Assignee: Montedison SpA
•
Filing: 1962-01-26
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Granted: 1966-01-11
•
Expires: 1982-01-26
Abstract
No abstract record available.
Inventors
- 👤 Oddo Nino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:06
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/02; C08K3/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A THERMALLY STABLE COMPOSITION COMPRISING A HIGH MOLECULAR WEIGHT SOLID POLYOXYMETHYLENE CONTAINING -CH2O- UNITS RECURRING IN THE POLYMERIC CHAIN AND CONTAINING TERMINAL ACYL GROUPS, AND SULFUR IN ANAMOUNT FROM ABOUT 0.01 TO 10% BY WEIGHT BASED ON THE WEIGHT OF SAID POLYOXYMETHYLENE.
Claim 2
Dependent Claim
42 words
A THERMALLY STABLE COMPOSITION COMPRISING A HIGH MOLECULAR WEIGHT SOLID POLYOXYMETHYLENE CONTAINING -CH2O- UNITS RECURRING IN THE POLYMERIC CHAIN AND CONTAINING TERMINAL ACYL GROUPS, AND SULFUR IN ANAMOUNT FROM ABOUT 0.01 TO 10% BY WEIGHT BASED ON THE WEIGHT OF SAID POLYOXYMETHYLENE.
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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |