US3409385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anthraquinone dyed polypropylene fibers
Assignee: Interchemical Corp
•
Filing: 1964-09-21
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Granted: 1968-11-05
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Expires: 1984-09-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph W Dehn
- 👤 Harold J Kuhefuss
- 👤 Resnick Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:51
CPC Classifications
C; C09; C09B; C09B1/00; C09B1/50; C09B1/51; C09B1/514; C09B1/5145; Y; Y10; Y10S; Y10S8/00; Y10S8/908; Y10S8/91; Y10S8/911; Y10S8/92; Y10S8/928
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3215710A
Cited
US3188163A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-05 | 1972-05-06 | 1972-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-05 | 1976-05-06 | 1976-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-05 | 1980-05-06 | 1980-11-05 | $7700.00 | Window Closed / Lapsed |