US2520896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid transmission connection
Assignee: Productive Inventions Inc
•
Filing: 1945-11-19
•
Granted: 1950-08-29
•
Expires: 1965-11-19
Abstract
No abstract record available.
Inventors
- 👤 Theodore J Smulski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:40
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/46; B60S1/48; B60S1/52; B60S1/522; B60S1/524; B60S1/04; B60S1/32; B60S1/34; B60S1/3415; F; F16; F16L; F16L27/00; F16L27/08; F16L27/0861
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE68939C
Cited
US447486A
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US849445A
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US918144A
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US1604867A
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FR663057A
Cited
FR796872A
Cited
US2168202A
Cited
US2348502A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-28 | 1954-02-27 | 1954-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-28 | 1958-02-27 | 1958-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-28 | 1962-02-27 | 1962-08-29 | $7700.00 | Window Closed / Lapsed |