US3041801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure for vacuum package
Assignee: WR Grace and Co
•
Filing: 1959-03-31
•
Granted: 1962-07-03
•
Expires: 1979-03-31
Abstract
No abstract record available.
Inventors
- 👤 John W Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:26
CPC Classifications
B; B65; B65D; B65D33/00; B65D33/16; B65D33/1616; B65D33/1641; B65B; B65B53/00; B65B53/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2087236A
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US2071300A
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US2486762A
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US2554636A
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GB683257A
Cited
US2812628A
Cited
US2836941A
Cited
US2890552A
Cited
US2924924A
Cited
US2898714A
Cited
US2904943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |