US2956256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc electrode brush mechanism
Assignee: Sheer Korman Associates Inc
•
Filing: 1957-11-19
•
Granted: 1960-10-11
•
Expires: 1977-11-19
Abstract
No abstract record available.
Inventors
- 👤 Sheer Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:34
CPC Classifications
H; H05; H05B; H05B7/00; H05B7/02; H05B7/10; H05B7/103; H05B7/105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US664649A
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US728273A
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US1076054A
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US1066175A
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US1594398A
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GB226517A
Cited
US1853609A
Cited
US2121578A
Cited
US2347646A
Cited
US2703372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |