US2533097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Union and expansion joint
Assignee: Individual
•
Filing: 1944-09-15
•
Granted: 1950-12-05
•
Expires: 1964-09-15
Abstract
No abstract record available.
Inventors
- 👤 Clarence R Dale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:35
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/12; F16L27/127; F16L27/1274
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US338599A
Cited
US553509A
Cited
US874652A
Cited
US1191503A
Cited
US1563836A
Cited
GB283811A
Cited
AT131906B
Cited
US1970059A
Cited
GB393419A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |