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US2982436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing construction
Assignee: Crown Cork and Seal Co Inc
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Filing: 1957-02-01
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Granted: 1961-05-02
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Expires: 1977-02-01
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Hitov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:21
CPC Classifications
B; B65; B65D; B65D39/00; B65D39/0005; B65D39/0023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US397839A
Cited
US544729A
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CA475408A
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US1158622A
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US1208240A
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GB373787A
Cited
US2303359A
Cited
US2591044A
Cited
US2787399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |