Patent US3042998A successfully refreshed from Google Patents.
US3042998A
Expired / Lapsed
US
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Slip ring assembly
Assignee: Sperry Gyroscope Co Ltd
•
Filing: 1958-05-02
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Granted: 1962-07-10
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Expires: 1978-05-02
Abstract
No abstract record available.
Inventors
- 👤 Sweett Henry Charles
- 👤 Parsley Charles Herbert Arthur
- 👤 Smith Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:14
CPC Classifications
H; H01; H01R; H01R43/00; H01R43/10; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49011
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) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |