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Patent US2870495A successfully refreshed from Google Patents.
US2870495A
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Closure sealing device
Assignee: WAYNE IRON WORKS
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Filing: 1954-09-16
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Granted: 1959-01-27
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Expires: 1974-09-16
Abstract
No abstract record available.
Inventors
- 👤 Charles H Wetzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:57
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/16; E06B7/18; E06B7/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US19217A
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US630216A
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US652489A
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FR389172A
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US1606407A
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US1963819A
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GB488511A
Cited
FR841285A
Cited
US2180112A
Cited
CH299958A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-26 | 1962-07-28 | 1963-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-26 | 1966-07-28 | 1967-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-26 | 1970-07-28 | 1971-01-27 | $7700.00 | Window Closed / Lapsed |