US2829801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rupturable closure for pressurized containers
Assignee: OIL EQUIPMENT LAB Inc
•
Filing: 1955-06-22
•
Granted: 1958-04-08
•
Expires: 1975-06-22
Abstract
No abstract record available.
Inventors
- 👤 John E Ayres
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:20
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/38; B65D83/382; A; A62; A62C; A62C13/00; A62C13/003; H; H01; H01M; H01M6/00; H01M6/30; H01M6/36; H01M6/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1892750A
Cited
US2574989A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |