US2882073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasket for bell and spigot concrete pipe
Assignee: United Concrete Pipe Corp
•
Filing: 1957-06-03
•
Granted: 1959-04-14
•
Expires: 1977-06-03
Abstract
No abstract record available.
Inventors
- 👤 Kenneth E James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:56
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/10; F16L13/11; F16L13/113; F16L17/00; F16L17/02; F16L17/025; F16L25/00; F16L25/0027
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB268303A
Cited
US2223434A
Cited
US2259940A
Cited
FR945303A
Cited
US2561884A
Cited
US2518829A
Cited
US2615740A
Cited
US2692155A
Cited
US2809853A
Cited
US2841429A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |