Patent US2674785A successfully refreshed from Google Patents.
US2674785A
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Method of making fittings
Assignee: Weatherhead Co
•
Filing: 1951-02-01
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Granted: 1954-04-13
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Expires: 1971-02-01
Abstract
No abstract record available.
Inventors
- 👤 Charles H Crawley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:10
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/02; F16L41/021; B; B23; B23K; B23K1/00; B23K1/0008; B23K1/008; B23K1/012; B23K2101/00; B23K2101/04; B23K2101/20; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49428; Y10T29/49442
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1851031A
Cited
US2145168A
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US2088321A
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US2257427A
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US2528280A
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US2584845A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |