Patent US2990584A successfully refreshed from Google Patents.
US2990584A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crimping apparatus
Assignee: Solutia Inc
•
Filing: 1957-10-24
•
Granted: 1961-07-04
•
Expires: 1977-10-24
Abstract
No abstract record available.
Inventors
- 👤 Chester H Goodwin
- 👤 Jr William R Mckelvy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:42
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2068139A
Cited
US2435891A
Cited
US2394165A
Cited
US2446840A
Cited
US2547060A
Cited
US2668564A
Cited
GB742440A
Cited
US2871519A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |