US2768264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc-suppressing device
Assignee: Rostone Corp
•
Filing: 1953-04-28
•
Granted: 1956-10-23
•
Expires: 1973-04-28
Abstract
No abstract record available.
Inventors
- 👤 Paul W Jones
- 👤 Robert E Wilkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:47
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/1315; H; H01; H01H; H01H33/00; H01H33/70; H01H33/72; H01H9/00; H01H9/30; H01H9/34; Y; Y10; Y10S; Y10S174/00; Y10S174/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1828292A
Cited
US2253719A
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US2240007A
Cited
US2325416A
Cited
US2386659A
Cited
US2551830A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |