US2601638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit breaker
Assignee: METROPOLITAN DEVICE Corp
•
Filing: 1946-12-07
•
Granted: 1952-06-24
•
Expires: 1966-12-07
Abstract
No abstract record available.
Inventors
- 👤 Albert B Rypinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:35
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/1009; H01H71/1018; Y; Y10; Y10S; Y10S200/00; Y10S200/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2096548A
Cited
US2099585A
Cited
US2209353A
Cited
US2277645A
Cited
US2348393A
Cited
US2503409A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-24 | 1955-12-24 | 1956-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-24 | 1959-12-24 | 1960-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-24 | 1963-12-24 | 1964-06-24 | $7700.00 | Window Closed / Lapsed |