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US2936943A
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Assignee: EVELYN S LEVKOFF
•
Filing: 1957-11-15
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Granted: 1960-05-17
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Expires: 1977-11-15
Abstract
No abstract record available.
Inventors
- 👤 Levkoff David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:51
CPC Classifications
B; B65; B65D; B65D85/00; B65D85/30; B65D85/32; B65D85/325
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1972622A
Cited
US2512991A
Cited
US2556088A
Cited
US2551854A
Cited
US2717115A
Cited
US2750099A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |