Patent US3116267A successfully refreshed from Google Patents.
US3116267A
Expired / Lapsed
US
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Oxymethylene polymers containing amide stabilizers
Assignee: Celanese Corp
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Filing: 1959-08-17
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Granted: 1963-12-31
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Expires: 1979-08-17
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Dolce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:51
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A POLYMER COMPOSITION COMPRISING A MOLDABLY OXYMETHYLENE POLYMER AND A STABILIZING AMOUNT OF A COMPOUND WHICH IS AN AMIDE OF A CARBOXYLIC ACID HAVING AT LEAST THREE CARBON ATOMS AND HAVING FROM ONE TO SIX AMIDE GROUPS AND CONSISTING OF CARBON, HYDROGEN, NITROGEN AND OXYGEN ATOMS, SAID OXYMETHYLENE POLYMER CONTAINING OXYALKYLENE GROUPS HAVING MORE THAN ONE CARBON ATOM AND CONTAINING FROM 60 TO 99.6 MOL PERCENT OF OXYMETHYLENE GROUPS.
Claim 2
Dependent Claim
69 words
A POLYMER COMPOSITION COMPRISING A MOLDABLY OXYMETHYLENE POLYMER AND A STABILIZING AMOUNT OF A COMPOUND WHICH IS AN AMIDE OF A CARBOXYLIC ACID HAVING AT LEAST THREE CARBON ATOMS AND HAVING FROM ONE TO SIX AMIDE GROUPS AND CONSISTING OF CARBON, HYDROGEN, NITROGEN AND OXYGEN ATOMS, SAID OXYMETHYLENE POLYMER CONTAINING OXYALKYLENE GROUPS HAVING MORE THAN ONE CARBON ATOM AND CONTAINING FROM 60 TO 99.6 MOL PERCENT OF OXYMETHYLENE GROUPS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-30 | 1967-07-01 | 1967-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-30 | 1971-07-01 | 1971-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-30 | 1975-07-01 | 1975-12-31 | $7700.00 | Window Closed / Lapsed |