Patent US2653040A successfully refreshed from Google Patents.
US2653040A
Expired / Lapsed
US
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Pipe coupling
Assignee: BARKER SMITH AND Co
•
Filing: 1949-12-15
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Granted: 1953-09-22
•
Expires: 1969-12-15
Abstract
No abstract record available.
Inventors
- 👤 Bernardino F Galluppi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:55
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/10; F16L27/113; F16L27/1136
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US817300A
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US1622768A
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GB349711A
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GB377349A
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AT150205B
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GB556010A
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US2355871A
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US2460032A
Cited
US2453391A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |