US2953399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bell and spigot pipe coupling having means to limit the rolling of the gasket
Assignee: ALABAMA PIPE Co
•
Filing: 1957-11-18
•
Granted: 1960-09-20
•
Expires: 1977-11-18
Abstract
No abstract record available.
Inventors
- 👤 Simcon D Weaver
- 👤 Albert A Hollingsworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:09
CPC Classifications
F; F16; F16L; F16L21/00; F16L21/02; F16L21/03
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US853900A
Cited
US1636363A
Cited
GB454900A
Cited
US2205910A
Cited
US2245153A
Cited
US2398399A
Cited
US2365574A
Cited
US2738992A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |