US2955240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Relay construction
Assignee: Individual
•
Filing: 1954-05-27
•
Granted: 1960-10-04
•
Expires: 1974-05-27
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:04
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/16; H01H50/18; H01H50/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US904367A
Cited
US1177988A
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US1172294A
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US1245194A
Cited
US2046748A
Cited
US2162465A
Cited
US2199178A
Cited
US2293484A
Cited
US2425296A
Cited
US2486613A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |