US2558830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure and time controlled circuit maker and breaker
Assignee: Individual
•
Filing: 1949-10-27
•
Granted: 1951-07-03
•
Expires: 1969-10-27
Abstract
No abstract record available.
Inventors
- 👤 Phillips B Drane
- 👤 Clarence D Laidley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:30
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/34; H01H43/00; H01H43/24; H01H43/28; H01H43/285
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-02 | 1955-01-01 | 1955-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-02 | 1959-01-01 | 1959-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-02 | 1963-01-01 | 1963-07-03 | $7700.00 | Window Closed / Lapsed |