US3000320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1957-07-18
•
Granted: 1961-09-19
•
Expires: 1977-07-18
Abstract
No abstract record available.
Inventors
- 👤 Ring Sandiford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:24
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/10; F04B53/102; F04B15/00; F04B15/04; F04B43/00; F04B43/02; F04B43/06; F04B43/067; F16; F16K; F16K15/00; F16K15/02; F16K15/06; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/7036; Y10T137/7722; Y10T137/7837; Y10T137/7838
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US885835A
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US1301485A
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US1680204A
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FR787226A
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US2145566A
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US2303597A
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US2343962A
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US2625886A
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US2650545A
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US2753804A
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US2713827A
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FR1068177A
Cited
US2869467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |