US2969995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sectional gasket ring with radially extending flange to prevent axial separation of sections
Assignee: Joslyn Manufacturing and Supply Co
•
Filing: 1957-06-17
•
Granted: 1961-01-31
•
Expires: 1977-06-17
Abstract
No abstract record available.
Inventors
- 👤 Roger C Boughton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:52
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/16; F16L55/168; F16L55/178
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US539617A
Cited
US940098A
Cited
GB319124A
Cited
US1856788A
Cited
US1916968A
Cited
US1951034A
Cited
US2037184A
Cited
GB462425A
Cited
US2415753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-31 | 1964-08-01 | 1965-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-31 | 1968-08-01 | 1969-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-31 | 1972-08-01 | 1973-01-31 | $7700.00 | Window Closed / Lapsed |