Patent US3427707A successfully refreshed from Google Patents.
US3427707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of joining a pipe and fitting
Assignee: Connecticut Research & Manufacturing Cor
•
Filing: 1965-12-16
•
Granted: 1969-02-18
•
Expires: 1985-12-16
Abstract
No abstract record available.
Inventors
- 👤 Raymond F Nowosadko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:50
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/20; B23K35/00; B23K35/02; B23K35/0222; F; F16; F16L; F16L13/00; F16L13/08; B23K2101/00; B23K2101/04; B23K2101/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB189403332A
Cited
US1563269A
Cited
US2060872A
Cited
US2003488A
Cited
US1986010A
Cited
US2174218A
Cited
GB651037A
Cited
US3032870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |