US2874344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetic motor starting and overload protection system
Assignee: Stubnitz Greene Spring Corp
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Filing: 1957-12-12
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Granted: 1959-02-17
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Expires: 1977-12-12
Abstract
No abstract record available.
Inventors
- 👤 Charles W Slocum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:55
CPC Classifications
H; H02; H02K; H02K11/00; H02K11/20; H02K11/25
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |