Patent US3238180A successfully refreshed from Google Patents.
US3238180A
Expired / Lapsed
US
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Modified polyamides and polyesters
Assignee: Glanzstoff AG
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Filing: 1962-02-12
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Granted: 1966-03-01
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Expires: 1982-02-12
Abstract
No abstract record available.
Inventors
- 👤 Wiloth Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:56
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G63/00; C08G63/66; C08G63/68; C08G63/688; C08G63/6884; C08G63/6886; C08G69/48; Y; Y10; Y10S; Y10S526/00; Y10S526/923
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A SYNTHETIC FIBER FORMING LINEAR POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYAMIDES AND POLYESTERS CONTAINING AS A MODIFYING UNIT CONDENSED INTO THE LINEAR POLYMER CHAIN FROM 0.1 TO 10 MOLAR PERCENT OF AT LEAST ONE COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
40 words
A SYNTHETIC FIBER FORMING LINEAR POLYMER SELECTED FROM THE GROUP CONSISTING OF POLYAMIDES AND POLYESTERS CONTAINING AS A MODIFYING UNIT CONDENSED INTO THE LINEAR POLYMER CHAIN FROM 0.1 TO 10 MOLAR PERCENT OF AT LEAST ONE COMPOUND OF THE FORMULA
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |