Patent US2526777A successfully refreshed from Google Patents.
US2792533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermally controlled retarded relay
Assignee: Individual
•
Filing: 1956-06-08
•
Granted: 1957-05-14
•
Expires: 1976-06-08
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:23
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/10; H01H43/00; H01H43/30; H01H43/301; H01H43/302; H01H43/304
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1960-05-13 | 1960-11-12 | 1961-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-13 | 1964-11-12 | 1965-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-13 | 1968-11-12 | 1969-05-14 | $7700.00 | Window Closed / Lapsed |