US2909820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article clip
Assignee: FMC Corp
•
Filing: 1953-05-21
•
Granted: 1959-10-27
•
Expires: 1973-05-21
Abstract
No abstract record available.
Inventors
- 👤 Harold M Ruth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:40
CPC Classifications
B; B65; B65D; B65D67/00; B65D67/02; Y; Y10; Y10T; Y10T24/00; Y10T24/29
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-26 | 1963-04-27 | 1963-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-26 | 1967-04-27 | 1967-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-26 | 1971-04-27 | 1971-10-27 | $7700.00 | Window Closed / Lapsed |