US2748425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for forming check valves and the like
Assignee: Carter Carburetor Corp
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Filing: 1951-07-12
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Granted: 1956-06-05
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Expires: 1971-07-12
Abstract
No abstract record available.
Inventors
- 👤 Irven E Coffey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:07
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/38; B26F1/40; B26D; B26D7/00; B26D7/27; B26F1/3866; B29; B29C; B29C43/00; B29C43/02; B29C43/14; B29C43/22; B29C43/24; B29C43/32; B29C43/36; B29C43/361; B29C2043/3615; B29C2043/3621; B29C2043/3623; B29C2043/3665; B29C2793/00; B29C2793/0009; B29C2793/0018; B29C33/00; B29C33/0022; B29C33/0033; B29C33/30; B29C33/301; B29C43/52; B29K; B29K2021/00; B29K2105/00; B29K2105/0002; B29K2105/06; B29K2105/08; B29K2105/10; B29K2105/101; B29L; B29L2031/00; B29L2031/26; B29L2031/265; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0405; Y10T83/0443; Y10T83/0448
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB175094A
Cited
US1503666A
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US1553554A
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US1639430A
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US1793603A
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GB488422A
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US2442338A
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US2548306A
Cited
US2593667A
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US2543305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |