Patent FR556345A successfully refreshed from Google Patents.
US2855480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precision anti-shock relays
Assignee: Electronic Specialty Co
•
Filing: 1956-02-06
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Granted: 1958-10-07
•
Expires: 1976-02-06
Abstract
No abstract record available.
Inventors
- 👤 William D Gibbs
- 👤 Charles Malcolm Jean
- 👤 Robert L Fowler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:32
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/02; H01H51/04; H01H51/06
Claims Analysis
Total Claims: 0
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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 |