US2679322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevating charger
Assignee: SC Johnson and Son Inc
•
Filing: 1949-04-02
•
Granted: 1954-05-25
•
Expires: 1969-04-02
Abstract
No abstract record available.
Inventors
- 👤 Edwin O Martinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:01
CPC Classifications
B; B65; B65G; B65G65/00; B65G2814/00; B65G2814/03; B65G2814/0301; B65G2814/0326; B65G2814/0328; B65G2814/0331; B65G2814/0332; Y; Y10; Y10S; Y10S414/00; Y10S414/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1732487A
Cited
US734292A
Cited
US2078379A
Cited
US2233005A
Cited
US2310592A
Cited
US2347437A
Cited
US2397420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |