Patent US3500958A successfully refreshed from Google Patents.
US3500958A
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US
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Flow responsive valve for lubricating systems
Assignee: McCord Corp
•
Filing: 1967-11-16
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Granted: 1970-03-17
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Expires: 1987-11-16
Abstract
No abstract record available.
Inventors
- 👤 James J Callahan
- 👤 Ralph F Urso
- 👤 John P Snow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:30
CPC Classifications
F; F16; F16N; F16N29/00; F16N29/04; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2703
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1025222A
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US1274228A
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US1339798A
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US1665366A
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US2138969A
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US2298646A
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US3148671A
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US3358790A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |