US3470595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of staple fibers
Assignee: Shell USA Inc
•
Filing: 1967-07-28
•
Granted: 1969-10-07
•
Expires: 1987-07-28
Abstract
No abstract record available.
Inventors
- 👤 Johan M Goppel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:58
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/42; D01D5/423; Y; Y10; Y10S; Y10S264/00; Y10S264/47
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3123854A
Cited
US2980982A
Cited
US2954587A
Cited
US2926415A
Cited
US3137611A
Cited
US3336174A
Cited
US3302501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |