US2705466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical apparatus
Assignee: Sargrove Electronics Ltd
•
Filing: 1950-10-16
•
Granted: 1955-04-05
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Expires: 1970-10-16
Abstract
No abstract record available.
Inventors
- 👤 John A Sargrove
- 👤 Denis A Ball
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:32
CPC Classifications
B; B26; B26D; B26D5/00; B26D5/20; B26D5/30; B26D5/34; D; D05; D05B; D05B65/00; Y; Y10; Y10T; Y10T83/00; Y10T83/525; Y10T83/527; Y10T83/528
Claims Analysis
Total Claims: 0
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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) | 1958-04-04 | 1958-10-04 | 1959-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-04 | 1962-10-04 | 1963-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-04 | 1966-10-04 | 1967-04-05 | $7700.00 | Window Closed / Lapsed |