US3521422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for closing open-topped liquid containers
Assignee: Craft Master Corp
•
Filing: 1967-10-24
•
Granted: 1970-07-21
•
Expires: 1987-10-24
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Tabor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:32
CPC Classifications
B; B67; B67B; B67B1/00; B67B1/04; B65; B65B; B65B7/00; B65B7/16; B65B7/28; B65B7/2842; B65B7/285
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1927212A
Cited
US2124959A
Cited
US2177919A
Cited
US2333898A
Cited
US2468517A
Cited
US3117873A
Cited
US3354614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-20 | 1974-01-19 | 1974-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-20 | 1978-01-19 | 1978-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-20 | 1982-01-19 | 1982-07-21 | $7700.00 | Window Closed / Lapsed |