US2606256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mercury switch
Assignee: Individual
•
Filing: 1949-10-05
•
Granted: 1952-08-05
•
Expires: 1969-10-05
Abstract
No abstract record available.
Inventors
- 👤 Sissenwine Norman
- 👤 Ratzkin Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:36
CPC Classifications
H; H01; H01H; H01H29/00; H01H29/18; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US550411A
Cited
US724704A
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US748409A
Cited
US762040A
Cited
US1040518A
Cited
US1983150A
Cited
US2435725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-05 | 1956-02-04 | 1956-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-05 | 1960-02-04 | 1960-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-05 | 1964-02-04 | 1964-08-05 | $7700.00 | Window Closed / Lapsed |