US2956188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealless motor for valve operation
Assignee: FOSTORIA CORP
•
Filing: 1956-04-06
•
Granted: 1960-10-11
•
Expires: 1976-04-06
Abstract
No abstract record available.
Inventors
- 👤 Howard T White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:39
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/06; F; F16; F16K; F16K31/00; F16K31/02; F16K31/04; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18664
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US865556A
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US1454777A
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US2291783A
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US2317549A
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US2351211A
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US2377937A
Cited
US2568548A
Cited
US2444886A
Cited
US2482568A
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US2425691A
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US2654848A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-11 | 1964-04-11 | 1964-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-11 | 1968-04-11 | 1968-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-11 | 1972-04-11 | 1972-10-11 | $7700.00 | Window Closed / Lapsed |