US2855545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaker devices
Assignee: Individual
•
Filing: 1953-05-04
•
Granted: 1958-10-07
•
Expires: 1973-05-04
Abstract
No abstract record available.
Inventors
- 👤 Norbert R Beyrard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:02
CPC Classifications
H; H01; H01H; H01H87/00; H01C; H01C10/00; H01C10/02; H01H33/00; H01H33/02; H01H33/04; H01H33/16; H01H33/161; H01H33/162; H01H71/00; H01H73/00; H01H73/02; H01H73/04; H01H77/00; H01H77/02; H01H77/04; H02; H02H; H02H3/00; H02H3/02; H02H3/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1327790A
Cited
US1571304A
Cited
US1694223A
Cited
US1764374A
Cited
US2607831A
Cited
US2649526A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |