US3247167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organo-tin polyamides
Assignee: Standard Oil Co
•
Filing: 1962-07-19
•
Granted: 1966-04-19
•
Expires: 1982-07-19
Abstract
No abstract record available.
Inventors
- 👤 Emil F Jason
- 👤 Ellis K Fields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:33
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/42; C08G79/00; C08G79/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
FILM- AND FIBER-FORMING POLYAMIDE COMPOSITIONS CONTAINING TIN IN THE POLYMER CHAIN CONSISTING ESSENTIALLY OF THE CONDENSATION PRODUCT OBTAINED BY REACTING UNDER POLYMERIZING CONDITIONS AT LEAST SUBSTANTIALLY EQUIMOLAR PROPORTIONS OF (A) A PRIMARY DIAMINE HAVING THE FORMULA
Claim 2
Dependent Claim
36 words
FILM- AND FIBER-FORMING POLYAMIDE COMPOSITIONS CONTAINING TIN IN THE POLYMER CHAIN CONSISTING ESSENTIALLY OF THE CONDENSATION PRODUCT OBTAINED BY REACTING UNDER POLYMERIZING CONDITIONS AT LEAST SUBSTANTIALLY EQUIMOLAR PROPORTIONS OF (A) A PRIMARY DIAMINE HAVING THE FORMULA
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
US3067168A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |