Patent US3875648A successfully refreshed from Google Patents.
Patent US2670757A successfully refreshed from Google Patents.
US2670757A
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Combination check valve and union
Assignee: DELANY REALTY Corp
•
Filing: 1949-08-19
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Granted: 1954-03-02
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Expires: 1969-08-19
Abstract
No abstract record available.
Inventors
- 👤 John J Delany
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:00
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/14; F16K15/144; F16K15/147; F16K15/1471; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7854; Y10T137/7879; Y10T137/788; Y10T137/7882; Y10T137/7885
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US803979A
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US1764186A
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US2092757A
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US2322631A
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US2382427A
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US2371449A
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US2378384A
Cited
US2347988A
Cited
US2524764A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |