US2289271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe connection
Assignee: KANE BOILER WORKS Inc
•
Filing: 1939-01-03
•
Granted: 1942-07-07
•
Expires: 1959-01-03
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Kane
- 👤 Raymond A Chambers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:46
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/02; E21B17/08; F; F16; F16L; F16L13/00; F16L13/02; F16L13/04; B; B23; B23K; B23K2101/00; B23K2101/04; B23K2101/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-07-06 | 1946-01-05 | 1946-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-07-06 | 1950-01-05 | 1950-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-07-06 | 1954-01-05 | 1954-07-07 | $7700.00 | Window Closed / Lapsed |