Patent US2385847A successfully refreshed from Google Patents.
US2385847A
Expired / Lapsed
US
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Vacuum release stopper
Assignee: Individual
•
Filing: 1941-04-23
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Granted: 1945-10-02
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Expires: 1961-04-23
Abstract
No abstract record available.
Inventors
- 👤 Skar Adolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:14
CPC Classifications
A; A47; A47J; A47J41/00; A47J41/0005; A47J41/0011; B; B65; B65D; B65D51/00; B65D51/16; B65D51/1672; B65D51/1683
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-10-01 | 1949-04-02 | 1949-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-10-01 | 1953-04-02 | 1953-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-10-01 | 1957-04-02 | 1957-10-02 | $7700.00 | Window Closed / Lapsed |