Patent US3642499A successfully refreshed from Google Patents.
US2585286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient valve in rigid wall portions of containers
Assignee: MARGARET L TUBBS
•
Filing: 1949-05-02
•
Granted: 1952-02-12
•
Expires: 1969-05-02
Abstract
No abstract record available.
Inventors
- 👤 Irl I Tubbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:47
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/0022; B29C33/30
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US670725A
Cited
US996588A
Cited
US1624224A
Cited
US1617066A
Cited
US1739871A
Cited
US1701863A
Cited
US1702974A
Cited
US1748682A
Cited
US1969777A
Cited
US1932226A
Cited
US2134119A
Cited
GB426786A
Cited
US2071213A
Cited
US2065121A
Cited
US2176565A
Cited
US2253611A
Cited
US2122299A
Cited
US2328863A
Cited
US2393322A
Cited
US2429183A
Cited
US2412169A
Cited
US2438642A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |