US3047937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making lined pipe connections
Assignee: BASF Schweiz AG
•
Filing: 1956-10-25
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Granted: 1962-08-07
•
Expires: 1976-10-25
Abstract
No abstract record available.
Inventors
- 👤 Vecchi Paul De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:40
CPC Classifications
B; B29; B29C; B29C57/00; B29C57/005; F; F16; F16L; F16L19/00; F16L19/02; F16L19/0243; F16L23/00; F16L23/12; F16L23/125; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49428; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/4992; Y10T29/49947; Y10T29/49948; Y10T29/49952
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1876455A
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US1058542A
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US2061269A
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US2070852A
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DE708224C
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US2216033A
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US2218835A
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US2248969A
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FR883048A
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US2574714A
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US2656594A
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US2900200A
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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) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |