US2679173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe tapping machine
Assignee: Service Pipe Line Co
•
Filing: 1949-07-09
•
Granted: 1954-05-25
•
Expires: 1969-07-09
Abstract
No abstract record available.
Inventors
- 👤 Arthur M Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:21
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/04; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53552; Y10T408/00; Y10T408/55; Y10T408/561; Y10T408/5626; Y10T408/5627; Y10T408/56275
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE282475C
Cited
US20469A
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US438740A
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US485715A
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US856650A
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US1007882A
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US1216284A
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US1234455A
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US1796077A
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FR640646A
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US1743338A
Cited
US1956129A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |