US2706233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding electrodes for high frequency electric sewing machines
Assignee: Individual
•
Filing: 1952-02-01
•
Granted: 1955-04-12
•
Expires: 1972-02-01
Abstract
No abstract record available.
Inventors
- 👤 Yamaguchi Sakuji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:53
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/83413; B29C65/00; B29C65/02; B29C65/04; B29C66/006; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/73; B29C66/731; B29C66/7314; B29C66/73143; B29C66/81; B29C66/814; B29C66/8141; B29C66/81411; B29C66/81421; B29C66/81422; B29C66/8145; B29C66/81453; B29C66/816; B29C66/8161; B29C66/81611; B29C66/83415; B29C66/71
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2525355A
Cited
US2459260A
Cited
US2477313A
Cited
GB647762A
Cited
US2583709A
Cited
US2589777A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-11 | 1958-10-11 | 1959-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-11 | 1962-10-11 | 1963-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-11 | 1966-10-11 | 1967-04-12 | $7700.00 | Window Closed / Lapsed |