US2812970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gate operating mechanism for a concrete bucket
Assignee: SC Johnson and Son Inc
•
Filing: 1949-02-26
•
Granted: 1957-11-12
•
Expires: 1969-02-26
Abstract
No abstract record available.
Inventors
- 👤 Edwin O Martinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:11
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/02; E04G21/025; B; B65; B65D; B65D90/00; B65D90/54; B65D90/58; B65D90/582; B65D2590/00; B65D2590/54; B65D2590/547; B65D2590/66; B65D2590/664
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US311789A
Cited
US563612A
Cited
US894128A
Cited
US890594A
Cited
US926886A
Cited
US943769A
Cited
US1005138A
Cited
US1087343A
Cited
US1207245A
Cited
US1928485A
Cited
US2017086A
Cited
US2069739A
Cited
US2134643A
Cited
US2401407A
Cited
US2217283A
Cited
US2244280A
Cited
US2342812A
Cited
US2344446A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |